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Conditions Asthma

Asthma VA Rating

Written and reviewed by Landon · Updated October 6, 2026

If you have asthma and qualifying burn-pit or fine-particulate service, current law may presume service connection without the old ten-year time limit. The exact location, date, and condition-specific rule still matter.

Board of Veterans' Appeals: 27.9% granted across 6,137 decided Board rulings on Asthma, 2021 to 2026. What this number means

Ask Raven about Asthma

Answers grounded in VA rules and Board decisions. Free to start.

How VA rates Asthma

DC 6602: Asthma / Bronchial Asthma

DC 6602 rating criteria and monthly pay
RatingWhat VA looks forMonthly pay (2026, veteran alone)Calculator
10%FEV-1 of 71- to 80-percent predicted, or FEV-1/FVC of 71 to 80 percent, or intermittent inhalational or oral bronchodilator therapy$180.42Try it
30%FEV-1 of 56- to 70-percent predicted, or FEV-1/FVC of 56 to 70 percent, or daily inhalational or oral bronchodilator therapy, or inhalational anti-inflammatory medication$552.47Try it
60%FEV-1 of 40- to 55-percent predicted, or FEV-1/FVC of 40 to 55 percent, or at least monthly visits to a physician for required care of exacerbations, or intermittent (at least three per year) courses of systemic (oral or parenteral) corticosteroids$1,435.02Try it
100%FEV-1 less than 40-percent predicted, or FEV-1/FVC less than 40 percent, or more than one attack per week with episodes of respiratory failure, or requires daily use of systemic (oral or parenteral) high dose corticosteroids or immuno-suppressive medications$3,938.58Try it

In the absence of clinical findings of asthma at the time of examination, a verified history of asthmatic attacks must be of record. Pulmonary function testing rules are in § 4.96(d).

Monthly pay is the basic amount for a veteran alone at that overall rating. Separate ratings combine under VA rules; the payments do not add together. Combine your ratings in the calculator or read the VA compensation rates (opens in a new tab).

Criteria checked against 38 CFR Part 4 (eCFR) as of 2026-07-01. 38 CFR § 4.97 explained (official text (opens in a new tab)).

VA forms for Asthma

A Disability Benefits Questionnaire (DBQ) is a VA form your clinician uses to document your condition and its effects.

On this page
  1. TL;DR
  2. Asthma VA rating criteria (DC 6602)
    1. Why asthma can be service connected at 0 percent
    2. The 60 to 100 percent cliff
  3. How much VA pays for asthma
  4. Asthma and the PACT Act presumption
    1. The statute: 38 USC §§ 1119 and 1120
    2. The regulation: 38 CFR § 3.320
    3. Which lane to file in
  5. How to prove asthma is service connected
  6. The asthma C&P exam
  7. Asthma, sleep apnea and other respiratory ratings
    1. Sleep apnea secondary to asthma
    2. Other conditions that travel with asthma
  8. Why VA denies asthma claims
  9. Questions veterans ask about asthma
    1. What is the VA rating for asthma?
    2. Is asthma a presumptive condition under the PACT Act?
    3. Does an inhaler qualify for a VA asthma rating?
    4. Can sleep apnea be secondary to asthma?
    5. Can asthma and allergic rhinitis be rated separately?
  10. Bottom Line
  11. Related Conditions

If you have asthma and qualifying burn-pit or fine-particulate service, current law may presume service connection without the old ten-year time limit. Under 38 USC §§ 1119 and 1120 and the applicable regulation, the exact service location and date still matter, but a veteran is not pushed into the direct lane merely because the asthma diagnosis came more than ten years after separation. In the Board's 2021 to 2026 service connection rulings on asthma, presumptive claims were granted more often than direct ones, and secondary claims less often; the Board section below shows all three rates. The lane you file in matters.

Once the door is open, a second fight begins. Asthma is rated under DC 6602 on a four-tier ladder: 10, 30, 60, and 100 percent. The tiers are driven by two things: your pulmonary function numbers and your medication pattern. A daily controller inhaler is enough for 30 percent. Reaching 60 or 100 percent takes monthly physician visits for flare-ups, frequent steroid courses or daily high-dose oral steroids. Winning service connection is not the same as getting paid. A claim can be service connected and still rated at zero percent because the record does not show the treatment or test results the lowest tier requires.

This page walks through the DC 6602 criteria and what they pay, how the PACT Act presumption works, why a claim can fail on severity after service connection is won, how asthma combines with sleep apnea and other respiratory ratings, and why VA denies asthma claims.


TL;DR

  • Across 6,137 decided Board rulings on asthma from 2021 to 2026, 27.9% were granted, 27.6% denied and 44.5% remanded. Remand is the most common outcome. The grant rate is 3.2 points above the Board-wide rate of 24.7%.
  • DC 6602 has four rating tiers: 10%, 30%, 60%, and 100%. The 30% tier is broad, because any daily controller inhaler qualifies. The 60% tier can also be met by monthly physician visits for exacerbations or three or more steroid courses a year. The 100% tier requires FEV-1 or FEV-1/FVC under 40 percent, more than one attack per week with episodes of respiratory failure, or daily high-dose systemic corticosteroids or immunosuppressive medications.
  • Current law does not impose the former ten-year window on the asthma presumption. The veteran still must match the applicable covered-service location and date rules and have current asthma.
  • A diagnosis alone can leave you service connected at 0 percent. The 10 percent tier needs documented bronchodilator therapy or qualifying pulmonary function numbers.
  • Asthma and sleep apnea cannot be combined under 38 CFR § 4.96(a). Winning sleep apnea secondary to asthma gives one rating under the predominant code, raised one level only when the overall disability warrants it.
  • Asthma C&P exams tend to be more mechanical than many conditions because the rating ladder runs on test numbers and medication records.

Asthma VA rating criteria (DC 6602)

Asthma is rated under DC 6602 in the respiratory chapter at 38 CFR § 4.97 (opens in a new tab). Here is the code as it reads in the current regulation.

100 percent: FEV-1 less than 40-percent predicted, or; FEV-1/FVC less than 40 percent, or; more than one attack per week with episodes of respiratory failure, or; requires daily use of systemic (oral or parenteral) high dose corticosteroids or immuno-suppressive medications

60 percent: FEV-1 of 40- to 55-percent predicted, or; FEV-1/FVC of 40 to 55 percent, or; at least monthly visits to a physician for required care of exacerbations, or; intermittent (at least three per year) courses of systemic (oral or parenteral) corticosteroids

30 percent: FEV-1 of 56- to 70-percent predicted, or; FEV-1/FVC of 56 to 70 percent, or; daily inhalational or oral bronchodilator therapy, or; inhalational anti-inflammatory medication

10 percent: FEV-1 of 71- to 80-percent predicted, or; FEV-1/FVC of 71 to 80 percent, or; intermittent inhalational or oral bronchodilator therapy

Note: In the absence of clinical findings of asthma at time of examination, a verified history of asthmatic attacks must be of record.

Two things stand out about this structure. First, the medication path matters as much as the pulmonary function test (PFT) path. A veteran with normal-looking PFTs but daily high-dose oral steroid use clears 100 percent on the medication criteria alone. A veteran with intermittent rescue inhaler use and normal PFTs lands at 10 percent. Second, the 30 percent tier is unusually broad. "Daily inhalational or oral bronchodilator therapy" or "inhalational anti-inflammatory medication" captures any veteran on a daily controller inhaler. That's why 30 percent is within reach for many veterans with persistent asthma.

Why asthma can be service connected at 0 percent

This is the part of the asthma rating that catches most veterans off guard. VA, or the Board, agrees the asthma exists and is service connected, and then assigns 0 percent because the record does not clear the lowest tier.

The usual pattern: the C&P examination finds normal PFTs and the record shows no documented bronchodilator use. The veteran might use a rescue inhaler occasionally during flare-ups, but the medical record doesn't establish "intermittent inhalational or oral bronchodilator therapy" as a pattern. A veteran with FEV-1 in the normal range and no documented inhaler use is at 0 percent, even with a diagnosed condition. A veteran with the same PFTs but a documented prescription for albuterol and a clinical note describing regular use is at 10 percent.

The strongest low-tier evidence is boring but persuasive: albuterol or controller inhaler prescriptions, pharmacy refill records, notes from a treating pulmonologist or primary-care clinician, and a clear statement that the medication is used for asthma. A buddy statement about in-service breathing complaints can support onset, but the rating tier still needs medical documentation.

The 60 to 100 percent cliff

The jump from 60 to 100 percent is steep. The 60 percent tier requires at least monthly physician visits for exacerbations or at least three courses of systemic steroids a year. The 100 percent tier requires daily high-dose systemic steroids or immunosuppressive medication, more than one attack a week with episodes of respiratory failure, or one of its PFT values. Many veterans with severe asthma sit between those thresholds (several ER visits a year but not monthly, oral steroid bursts that are frequent but not daily) and end up rated at 60 percent.

Veterans often describe this as "severe asthma," but the rating schedule wants a specific paper trail. If you are arguing for 60 or 100 percent, collect dates: ER visits, urgent-care visits, steroid bursts, pulmonology visits, respiratory failure episodes, and medication changes. The details matter more than the label.


How much VA pays for asthma

At the 2026 rates (effective December 1, 2025), a single veteran with no dependents receives the following each month for an asthma rating standing alone.

  • 10% pays $180.42.
  • 30% pays $552.47.
  • 60% pays $1,435.02.
  • 100% pays $3,938.58.

The step from 30 to 60 percent is worth $882.55 a month, and it can ride on documenting a third steroid course in a year or monthly visits for flare-ups. VA pays by your combined rating, so the asthma percentage adds money only when it changes the combined figure.


Asthma and the PACT Act presumption

Current law provides two related but distinct asthma-presumption lanes, and the facts of your service decide which one applies.

The statute: 38 USC §§ 1119 and 1120

Under 38 USC §§ 1119 and 1120 (opens in a new tab), the listed disease is asthma diagnosed after covered service. Section 1119 defines two covered-service groups: service on or after August 2, 1990 at a duty station in Bahrain, Iraq, Kuwait, Oman, Qatar, Saudi Arabia, Somalia, or the United Arab Emirates; and service on or after September 11, 2001 at a duty station in Afghanistan, Djibouti, Egypt, Jordan, Lebanon, Syria, Yemen, Uzbekistan, or any other country the Secretary determines relevant. Both statutory groups include airspace above the listed countries.

The regulation: 38 CFR § 3.320

The separate fine-particulate rule at 38 CFR § 3.320 (opens in a new tab) covers asthma "manifested to any degree (including non-compensable) at any time following separation from a qualifying period of military service." Its service list is narrower: the Southwest Asia theater of operations during the Persian Gulf War, including its airspace, or Afghanistan, Syria, Djibouti, or Uzbekistan on or after September 19, 2001. VA's PACT Act benefits guidance (opens in a new tab) is the official starting point for covered-location and eligibility questions.

Older material may still describe a ten-year window. When VA first added asthma in 2021, the condition had to appear within 10 years of discharge; the 2023 final rule removed that requirement, effective October 31, 2023 (88 FR 60336). A later diagnosis does not, by itself, force the claim into direct service connection. The veteran still must establish current asthma and service that matches the location and date requirements of the applicable presumption, and VA may consider the rule's stated exceptions in § 3.320(b).

Which lane to file in

If you have asthma diagnosed after service covered by § 1119, raise the statutory presumption under 38 USC §§ 1119 and 1120. If asthma became manifest after qualifying service under § 3.320's narrower location and date rules, raise the fine-particulate presumption under 38 CFR § 3.320. Raise both only when the facts meet both authorities. The broader statutory service list does not automatically establish eligibility under the narrower § 3.320 service rule.

The presumption removes the question of whether service caused the condition, which is why it is the highest-yield move for a veteran with qualifying service. The remaining fight is about the diagnosis and the rating. If you are not sure which bucket you fall into, use the asthma evidence checklist and compare your service dates, deployment locations, diagnosis date, and medical records before submitting.


How to prove asthma is service connected

If your service falls outside the covered locations or dates, you can still argue direct service connection, and the nexus opinion becomes the case. The Board relies on medical opinions heavily here: when it credited a favorable opinion it nearly always granted, and when it relied on an opinion against the claim it nearly always denied. The Board section below shows those rates, and they describe what the Board credited, not grades of evidence.

A few patterns show up in granted direct claims.

Documented in-service onset or worsening. The strongest direct cases have service treatment records showing respiratory complaints, prescriptions for bronchodilators, or in-service pulmonary function testing.

Continuity of treatment after service. Records showing regular pulmonology follow-up, controller medications, and rescue inhaler use establish that the condition has been chronic and active.

An opinion that engages the exposure history. The strong opinions describe specific exposures (burn pits, JP-8 fuel, sand, mold, dust), explain how those irritants relate to asthma, address competing post-service causes such as smoking or occupational exposures, and explain the time course of symptoms. The weak ones assert a conclusion in boilerplate. A private opinion from a treating pulmonologist often does the analytical work a VA examiner skipped.

A diagnosis more than ten years after separation is not, standing alone, a reason to put a qualifying veteran in the direct-only lane.


The asthma C&P exam

Asthma C&P exams are mechanical, but that does not mean they are automatic. Bring a current medication list with prescription dates, pharmacy refill history, pulmonary function tests, ER or urgent-care visits, and a short log of exacerbations.

The examiner needs to see the medication pattern, not just hear that you have asthma. A daily controller inhaler matters differently than occasional rescue inhaler use. Oral steroid courses matter differently than inhaled medication. Asthma varies from day to day, so a single PFT on a good day can look normal; that is why the treatment record carries so much weight, since each tier can be met on medication alone. If the exam finds no active signs, the note to DC 6602 requires a verified history of asthmatic attacks in the record, so bring the documentation of past attacks. If you have been tracking attacks, triggers, and rescue inhaler use, the symptom tracker is built for exactly that kind of record.

If you are nervous about what the examiner may ask, review the respiratory C&P exam prep checklist before the appointment so you can describe frequency, triggers, medication use, and flare-ups without guessing.


Asthma, sleep apnea and other respiratory ratings

Asthma rarely travels alone, and the rating math when several respiratory conditions are service connected has a quirk worth knowing.

Under 38 CFR § 4.96(a) (opens in a new tab), ratings under DC 6600 through 6817 and DC 6822 through 6847 are not combined with each other. That range includes asthma (DC 6602), chronic bronchitis (DC 6600), COPD (DC 6604), and sleep apnea (DC 6847). A single rating is assigned under the code for the predominant disability, with elevation to the next higher evaluation where the severity of the overall disability warrants it. Conditions outside those ranges, such as sinusitis (DC 6510 through 6514) and allergic rhinitis (DC 6522), are rated separately and combined normally.

Sleep apnea secondary to asthma

In the Board data, sleep apnea is by far the condition most often claimed as secondary to asthma, and it is the one secondary pair for asthma with enough rulings to publish; the Board section below lists it with its count and grant rate. The research shows an association whose strength varies: a 2017 meta-analysis found obstructive sleep apnea more common in adults with asthma (Kong and colleagues, Scientific Reports, PMID 28642543), and a 2025 meta-analysis found the link clearest in moderate to severe asthma (Ferreira and colleagues, Sleep Medicine, PMID 40774162). In a January 2025 decision (Citation Nr. A25000897), the Board granted sleep apnea secondary to asthma when a favorable opinion the veteran submitted stood against two VA opinions, and the evidence was in equipoise. The opinion has to say whether asthma caused the sleep apnea or aggravated it, meaning it would be less severe but for the asthma.

Because of § 4.96(a), winning sleep apnea secondary to asthma does not add a second rating. You get one rating under the predominant code, raised to the next level when the combined picture warrants it. VA's 2022 proposal for the respiratory schedule (87 FR 8474) would let sleep apnea be rated alongside asthma, but it is not final as of October 2026.

Other conditions that travel with asthma

Sinusitis often co-occurs with asthma and, outside the § 4.96(a) range, is rated on its own criteria and combined normally. GERD and anxiety are also claimed as secondary to asthma; they are rated separately when the evidence supports them. If you think asthma has caused or aggravated another condition, map the theory before filing with the secondary condition pathways tool. For other respiratory claims, COPD shares respiratory-chapter rating quirks, but the diagnostic and nexus paths are different enough that it should be evaluated separately.


Why VA denies asthma claims

Across 6,137 decided Board rulings on asthma from 2021 to 2026, 27.9% were granted, 27.6% denied and 44.5% remanded. A ruling is one issue the Board decided in one decision; one decision often rules on several issues. When the Board denied service connection, it most often found no link between the asthma and service, and when it sent claims back, it most often found the VA exam or opinion inadequate; the Board section below shows both breakdowns and how rating appeals fared against service connection appeals.

The gaps repeat across the claims I review.

No link to service on a direct claim. The asthma started after separation, the service is outside the covered locations, and no opinion explains the exposure history.

Wrong lane. A qualifying veteran files on a direct theory and builds a nexus case the presumption would have made unnecessary, or a veteran relies on the broader statutory list for a § 3.320 claim.

Severity not documented. Service connection is won at 0 percent because the record shows a diagnosis but no prescriptions, refills or treating notes that show bronchodilator use.

Exacerbations not counted. Steroid bursts and flare-up visits sit scattered across urgent-care notes, so the 60 percent count of three steroid courses or monthly visits never appears in one place.

Secondary claims without a mechanism. A sleep apnea or GERD claim built on a shared timeline, with no opinion that addresses cause and aggravation.


Questions veterans ask about asthma

What is the VA rating for asthma?

Asthma rates 10, 30, 60 or 100 percent under DC 6602, based on FEV-1 or FEV-1/FVC results or on medication. A daily controller inhaler fits 30 percent, three or more systemic steroid courses a year or monthly physician visits for flare-ups fit 60 percent, and daily high-dose systemic steroids fit 100 percent.

Is asthma a presumptive condition under the PACT Act?

Yes, for covered service. 38 USC § 1120 lists asthma diagnosed after covered service in the locations and periods of § 1119, and 38 CFR § 3.320 separately presumes asthma after a narrower set of qualifying service.

Does an inhaler qualify for a VA asthma rating?

Yes, if the record documents it. Intermittent bronchodilator use supports 10 percent, and daily bronchodilator therapy or an inhaled anti-inflammatory medication supports 30 percent.

Can sleep apnea be secondary to asthma?

It can, with a medical opinion that explains how asthma caused or worsened your sleep apnea. Under 38 CFR § 4.96(a) the two are not rated separately, so a win gives one rating under the predominant condition, raised a level only when the overall disability warrants it.

Can asthma and allergic rhinitis be rated separately?

Yes. Allergic rhinitis is rated under DC 6522, outside the respiratory codes that § 4.96(a) bars from combining, so a rhinitis rating combines with an asthma rating in the normal way. See the allergic rhinitis page.


Bottom Line

Asthma is rated under 38 CFR § 4.97 DC 6602 at four tiers (10, 30, 60, and 100 percent) anchored to FEV-1 values, medication frequency, and exacerbation patterns. The current burn-pit and fine-particulate presumptions do not impose the former ten-year window; exact service locations, dates, and the applicable authority still matter, and in the Board data presumptive claims did better than direct ones. A common way to lose at the lowest tier isn't service connection. It's a finding that the record doesn't meet DC 6602's 10 percent threshold, which requires documented bronchodilator use or qualifying test numbers, not just a diagnosis. Sleep apnea is the secondary claim asthma most often anchors, but under § 4.96(a) it changes the asthma rating only by raising the predominant rating a level. The structural high-yield move for any veteran with qualifying PACT Act service is filing under the presumption rather than the direct lane, even when both paths are available.


Asthma claim strategy often overlaps with sinusitis, sleep apnea, and COPD. You can compare the full condition library from the VA disability conditions index.


Methodology and Limitations

  • Data source: 38 CFR § 4.97 DC 6602, 38 CFR § 4.96(a), 38 CFR § 3.320 and the final rule at 88 FR 60336 (September 1, 2023), and 38 USC §§ 1119 and 1120, checked against the eCFR text current to October 2, 2026 and the U.S. Code. The pending proposal is 87 FR 8474 (February 15, 2022). Compensation amounts are the 2026 VA rates (effective December 1, 2025) for a single veteran with no dependents. Board figures come from Claim Raven's read of every Board decision from 2021 to 2026 that it holds: 511,036 decisions containing 1,378,030 rulings.
  • Sample size: 6,700 Board rulings on asthma, 6,137 of them decided. Of the decided rulings, 1,710 were granted (27.9%), 1,696 denied (27.6%) and 2,731 remanded (44.5%). The Board section on this page breaks these down by denial reason, remand reason, appeal type, claim theory, medical opinion, era and secondary pair; those figures are computed from the data, not typed here.
  • Limitations: The dataset captures BVA-level decisions and is not representative of all asthma claims filed with VA. Many asthma claims grant at the regional office and never appear in BVA data. The presumption has been amended since enactment; current regulatory text controls over older interpretations in the older cases in the dataset. The read does not code rating tiers or exam adequacy findings beyond the remand reasons, so this page does not quote them. The Board decision cited is an example of reasoning, not a measure of how often that result occurs, and study findings are associations, not causes. These observations describe BVA patterns and are not predictions of individual outcomes, and Claim Raven is data analysis, not legal, medical, or VA-accredited advice.

What Board appeals show for Asthma

These are outcomes at the Board of Veterans' Appeals, not first-time claims, and not your personal odds. They show where appeals on this issue tend to land.

How appeals on this issue ended

27.9%

granted across 6,137 decided Board rulings on Asthma, 2021 to 2026.

  • Granted1,710 27.9%
  • Denied1,696 27.6%
  • Sent back2,731 44.5%

"Sent back" means remanded: the Board returned the claim to VA for more work instead of deciding it.

When the Board discussed a private medical opinion

Granted or denied rulings where the Board's decision discussed a private medical opinion (397)71.5%

All Asthma granted or denied rulings (3,406)50.2%

Both rows leave out remands, because the Board weighs this evidence only when it grants or denies. Association, not cause; the Board may simply discuss stronger evidence more.

The full evidence breakdown, with grant rates for every evidence type and language from actual Board decisions, is in Raven Insights, included with every paid plan.

Why the Board denied asthma claims

In 803 service connection rulings the Board denied, 2021 to 2026, it found this part of the claim not shown:

  • A link between asthma and service (nexus)59.3%
  • A current diagnosis40.3%
  • An event, injury or exposure in service36.4%

A denial can fail more than one part, so the shares can add up to more than 100%.

Why the Board sent asthma claims back

Of 2,731 asthma rulings the Board remanded, 2021 to 2026:

  • The VA exam or opinion was not adequate56.7%
  • VA still had records to get37.3%
  • VA had not given an exam20.1%
  • The exam was out of date or the condition had worsened5.5%

A remand can ask for records and a new exam at once, so these overlap.

What happened after a remand

Legacy appeals the Board remanded and then decided again on the same docket, with the second decision in 2010 to 2026.

  • Granted when the Board decided it again24.6% of 1,580
  • Granted when the Board found the exam done after the remand inadequate86.0% of 121

Associations, not causes. Appeals under the 2019 system start a new docket each time, so they cannot be followed this way.

Results by what the appeal asked for

Board rulings on asthma, 2021 to 2026, by the question the Board decided. The share is granted out of every decided ruling, remands included.

  • Service connection25.6% of 3,992
  • A higher rating22.8% of 1,492
  • An earlier effective date38.3% of 345
  • Reopening a denied claim with new evidence77.1% of 218

What the Board did with medical opinions

Service connection rulings on asthma the Board granted or denied, 2021 to 2026, by the medical opinion it relied on. The share is granted.

  • It relied on a favorable medical opinion99.6% of 474
  • It found the VA opinion inadequate or gave it less weight89.4% of 283
  • It relied on an opinion against the claim2.0% of 538
  • It weighed no medical opinion53.8% of 528

All granted or denied asthma service connection rulings: 56.0% of 1,823.

Remands are left out on both sides, because the Board weighs medical opinions only when it grants or denies. Associations, not causes.

Direct, secondary and presumptive claims

Service connection rulings on asthma, 2021 to 2026, by how the claim was argued. The share is granted out of every decided ruling, remands included.

  • Direct: it began in service27.5% of 3,449
  • Secondary: caused or worsened by a service-connected condition13.3% of 543
  • Presumptive: the law presumes the link36.7% of 1,852

All asthma service connection rulings: 25.6% of 3,992.

A presumptive claim is also counted as direct or secondary.

How asthma appeals have gone since 1992

Every Board ruling on asthma since 1992, by when it was decided. The share is granted out of every decided ruling.

  • 1992 to 200211.1% of 2,821
  • 2003 to February 201913.7% of 6,464
  • February 2019 to August 2022 (new appeals system)21.2% of 3,110
  • Since August 2022 (PACT Act)30.7% of 4,458

These rows come from a simpler reading of every decision's order since 1992, so they are a different measure from the 2021 to 2026 figures elsewhere on this page. Issues with unclear outcomes, or with both a decision and a remand, are left out.

Secondary conditions and asthma

Service connection rulings, 2021 to 2026, on a claim the Board's order wrote as one condition secondary to (or due to, or aggravated by) another. The share is granted out of every decided ruling, remands included.

Claimed secondary to asthma

Each pair is shown only after a sample of its Board orders was read by hand and the automatic reading was right at least 85% of the time.

What the Board cites in asthma decisions

Board decisions from 2019 to 2026 on asthma alone, and the rules and cases they cite far more often than other decisions on the same kind of issue. Each share is the part of these decisions that cite it at least once, against the same share across all decisions on that issue.

Service connection 1,176 decisions

  • Wagner v. Principi 370 F.3d 108912.8% vs 2.2%
  • 38 CFR § 3.320 Claims based on exposure to fine particulate matter9.3% vs 0.4%
  • 38 CFR § 3.306 Aggravation of preservice disability8.9% vs 2.3%
  • 38 CFR § 3.317 Compensation for certain disabilities occurring in Persian Gulf veterans8.4% vs 2.0%
  • Horn v. Shinseki 25 Vet. App. 2315.9% vs 1.6%
  • Crowe v. Brown 7 Vet. App. 2384.1% vs 0.6%

A higher rating 574 decisions

  • 38 CFR § 4.97 Schedule of ratings: respiratory system61.7% vs 3.1%
  • 38 CFR § 4.96 Special provisions regarding evaluation of respiratory conditions44.4% vs 1.3%

Read from the decision text. A citation shows what the Board discussed, not which side it helped, and Board decisions are not precedential.

Do you need a nexus letter for Asthma?

A nexus opinion may matter when VA disputes whether this condition is connected to service or to an already service-connected condition.

  • If service connection is already established, the dispute may be about rating severity rather than nexus.
  • If a presumptive rule covers the condition and service, a separate nexus opinion may not be required.
  • If the current diagnosis, event, or medical explanation is missing, locate that evidence before asking a clinician for an opinion.

Do you need a nexus letter for this condition? View Raven Nexus.

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