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TL;DR
- Costochondritis is not named in the rating schedule. Section 4.20 allows an unlisted condition to be rated by analogy to a closely related disability.
- DC 5321, the thoracic muscle group involved in respiration, is a possible analogy when those functions and the location fit your disability.
- That code lists zero, 10, and 20 percent. It is not a guaranteed code assignment or an automatic 10 percent for chest pain.
- Your clinician should establish the diagnosis and describe the actual functional limits.
- Board data for costochondritis is not published on Claim Raven yet. No approval rate is estimated here.
The rating schedule, word for word
There is no costochondritis-specific table to quote. This is the possible analogous code in 38 CFR § 4.73:
5321 Group XXI. Function: Respiration. Muscles of respiration: Thoracic muscle group
| Rating | Criteria |
|---|---|
| 20% | Severe or Moderately Severe |
| 10% | Moderate |
| 0% | Slight |
Section 4.20 supplies the rule for selecting an analogy:
When an unlisted condition is encountered it will be permissible to rate under a closely related disease or injury in which not only the functions affected, but the anatomical localization and symptomatology are closely analogous. Conjectural analogies will be avoided, as will the use of analogous ratings for conditions of doubtful diagnosis, or for those not fully supported by clinical and laboratory findings. Nor will ratings assigned to organic diseases and injuries be assigned by analogy to conditions of functional origin.
What each level means in practice
DC 5321 describes levels of thoracic muscle disability. The words slight, moderate, and severe are not a separate costochondritis symptom checklist. The analogy must explain how your chest-wall impairment compares with the listed disability.
For zero percent, the analogous impairment is slight. For 10 percent, it is moderate. For 20 percent, it is moderately severe or severe. A report should explain the findings behind those descriptions, including the functional effect of pain, fatigue, weakness, or reduced endurance where present.
Section 4.56 describes muscle-disability assessment, including wound history and objective findings for actual muscle injuries. An analogous rating does not mean you must claim you sustained a gunshot wound or have muscle damage that your records do not show. The examiner and rater must address the real condition and explain the comparison.
DC 5321 has a 20 percent maximum, but that is the maximum of this code, not proof that every possible chest condition has the same ceiling. The proper code depends on your diagnosis and disability picture.
How to prove service connection
For direct service connection under § 3.303, gather the current diagnosis, relevant chest symptoms or injury records during service, and a medical opinion connecting the current condition to that history. If you describe repetitive duty activity, explain what you did and when. Your clinician must evaluate whether that history explains your condition.
For secondary service connection under § 3.310, the opinion must address whether an already service-connected disability or its treatment caused or aggravated costochondritis. The fact that two conditions cause pain in the same region does not establish a causal link.
An analogy under § 4.20 concerns the percentage. It does not create a presumption of service connection. Any proposed presumptive claim needs its own applicable legal and medical basis.
The C&P exam and DBQ
There is no dedicated costochondritis DBQ in Claim Raven's public library. The Muscle Injuries DBQ can help you understand the functional findings relevant to a proposed DC 5321 analogy. VA may request a different examination depending on the diagnosis and findings.
At your compensation and pension (C&P) exam, explain the location, frequency, duration, triggers, and effect of your symptoms. Describe how breathing, lifting, reaching, or sustained activity is affected if that is what you experience. Include flare periods as well as your usual baseline.
The medical record should distinguish the source of your chest symptoms. Heart disease, GERD, and thoracic-spine conditions have different rating paths. Do not label unexplained chest symptoms as costochondritis solely because a rating analogy is available.
Common denial reasons and evidence gaps
These are checks for your records, not a statistical ranking of Board denials:
- The diagnosis is unclear or unsupported.
- The opinion does not explain the relationship to service.
- The proposed analogous code is named without explaining the shared location, symptoms, and affected functions.
- The examination records tenderness but does not explain functional impairment.
- The same chest symptoms are attributed to several conditions without distinguishing them.
Secondary conditions
A separate condition requires more than a shared symptom. If a diagnosed depressive disorder or another disability is claimed as secondary to chronic chest-wall pain, obtain a medical explanation of causation or aggravation. Do not assume pain establishes a psychiatric diagnosis.
The somatic symptom disorder page explains a different diagnosis and its mental-health criteria. It is not a substitute label for all chronic pain.
How it combines with other ratings
Use the combined-rating calculator for disabilities that may legally receive separate evaluations. Section 4.25 supplies the math, while § 4.14 prevents counting the same manifestation twice.
If a respiratory, muscle, or orthopedic rating already compensates the same functional loss, another diagnostic label does not automatically justify another percentage. The record needs to explain any distinct impairment.
Bottom line
The useful evidence is a supported diagnosis, a service-connection explanation, and a clear account of functional loss. A rating analogy should fit those facts. It should not change them.
Methodology and limitations
The absence of a dedicated code and the DC 5321 levels were checked against the committed eCFR index. The quoted criteria and analogy rule were verified against live §§ 4.73 and 4.20 on October 2, 2026. DC 5321 is presented as a possible analogy, not a universal VA assignment. No Board figures or pay amounts are supplied.
Sources
- 38 CFR § 4.73, DC 5321 (opens in a new tab)
- 38 CFR § 4.20, analogous ratings (opens in a new tab)
- 38 CFR § 4.56, muscle disability assessment (opens in a new tab)
- 38 CFR § 3.303, direct service connection (opens in a new tab)
- 38 CFR § 3.310, secondary service connection (opens in a new tab)
- 38 CFR § 4.14, overlapping manifestations (opens in a new tab)
- 38 CFR § 4.25, combined ratings (opens in a new tab)
- Muscle Injuries DBQ and official VA form