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Myositis VA Disability Rating

Diagnostic code 5021
By the editorial deskUpdated Jun 13, 2026Sources verified Jun 13, 2026
Quick summary
Myositis is rated under diagnostic code 5021 on the limitation of motion of the affected parts, like degenerative arthritis: compensable limitation rates under the joint codes, and where motion limits are noncompensable, 10 percent applies per major joint or muscle group with satisfactory evidence of painful motion. Inflammatory autoimmune myositis (polymyositis, dermatomyositis) with systemic effects may instead be rated by analogy to lupus.
Key requirements
  • Service connection requires a current diagnosis, an in-service event or exposure, and a medical link (nexus) between the two.
  • VA assigns ratings of 10% to 20% under diagnostic code 5021, using the criteria in the rating table below.
  • The percentage assigned turns on Limitation of motion.
  • Measured at the C&P exam: Goniometer, range of motion.
VA also uses diagnostic code 5021 for Costochondritis. Those are distinct conditions with their own pages. This page covers Myositis specifically.
This page explains common evidence VA may consider when rating this condition. It is not medical advice and does not diagnose any condition. Talk with a licensed medical professional about diagnosis and treatment, and with a VA accredited representative (38 CFR 14.629) about a specific claim.
Ratings
10% to 20%
Diagnostic code
5021
Decided on
Limitation of motion
Measured by
Goniometer, range of motion
The five parts of a compensation decisionA current disabilityAn in service eventA connectionSeverity under the criteriaAn effective dateHow the pieces fit together
RatingCriteria
10%Limitation of motion of the affected parts that is noncompensable under the joint codes, with objective painful motion, per major joint or muscle group.
20%Compensable limitation of motion under the matching joint codes, rated per joint (representative value; actual percent follows the joint involved).
Rule: 38 CFR 4.71a, DC 5021Source: eCFR, Title 38 Part 4Verified: 2026-06-13Change history: no criteria change recorded since publicationEach percentage links to itself; cite with the anchor.

Illustrative scenarios showing how the criteria above are applied. These are educational examples, not a prediction of any individual veteran's rating.

Painful motion, not yet compensable on motion alone

Illustrates 10%

Situation. There is painful motion of an affected joint or muscle group that would not be compensable on range of motion alone.

How the criteria apply. Noncompensable limitation of motion with objective painful motion rates 10 percent per major joint or muscle group under DC 5021.

Compensable limitation of motion

Illustrates 20%

Situation. Motion is limited enough to be compensable under the matching joint code.

How the criteria apply. Compensable limitation of motion is rated per joint under the matching code; a representative value is 20 percent under DC 5021.

How the measurement should be taken. When this condition is rated on limitation of motion, the examiner is required to measure the joint with a goniometer, the instrument made to read the angle of a joint, and should not estimate the angle by sight. Under 38 CFR 4.46, the goniometer is described as indispensable for measuring limitation of motion in examinations within the Department of Veterans Affairs. If the exam report does not list goniometer readings in degrees, that can be a reason to question whether the exam was adequate. Read 38 CFR 4.46

Muscle inflammation is rated by what it does to movement. For the autoimmune forms, weakness, swallowing trouble, and skin findings each matter and can pull the rating onto stronger codes.

What VA looks at

The myositis type (infectious, autoimmune, drug related), muscle enzyme labs and biopsy where done, which muscle groups are weak, and range of motion effects.

Common exam and DBQ topics

Weakness pattern, pain with use, swallowing or breathing involvement, steroid and immunosuppressant treatment.

Evidence that usually matters

CK and aldolase labs, EMG, muscle biopsy reports, rheumatology notes, strength and motion findings.

Common misunderstandings

Statin associated and autoimmune myositis traced to service connected treatment can be claimed as secondary. Systemic autoimmune myositis usually rates better by analogy to the collagen disease codes than under 5021 alone.

If a VA decision on this came back wrong

You have three review lanes, pick the one that fits the situation.

Under the Appeals Modernization Act (38 CFR 3.2500), a Higher Level Review or a Board Appeal must be requested within one year of the decision notice. A Supplemental Claim can generally be filed at any time after the decision, but filing any of the three within that one year window is what keeps the claim continuously pursued and protects the original effective date; wait longer and a later award may start from the new filing date instead.

Related conditions

Background reading

Supplemental articles that connect to this condition.

State benefits stack with VA disability

Your rating may also qualify you for state-level benefits.

VA compensation is federal, but every state layers its own benefits on top. Many states reduce or waive property tax for disabled veterans, and many offer license, tuition, or vehicle benefits at various rating levels. The thresholds, dollar amounts, and eligibility rules vary widely from state to state, so the reliable answer is always your own state's guide.

See your state's benefitsReviewed quarterly

Put this rating to work

Free calculators and a guide to turn a rating percentage into real numbers. Your figures stay on your device unless you ask us to email an estimate.

Secondary conditions and case specific outcomes are fact specific. We do not tell you what claims to file. Consider talking with a VA accredited representative.
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Editor's note

Most recent human review on this page, July 5, 2026. Below is the review history across this page, its citations, and the supplemental articles it links to.

  1. July 5, 2026articleAppealing or Continuing a VA Decision: The Three Lanes Under the AMA
  2. July 5, 2026articleThe C&P Exam: What to Expect and How to Prepare
  3. June 13, 2026conditionThis page
  4. June 13, 2026citation38 CFR Part 4 Schedule for Rating Disabilities
Printed from The Veteran Benefit Desk, https://veteranbenefitdesk.com/conditions/myositis. Figures reflect this page as published. Rates change each December; confirm current amounts at veteranbenefitdesk.com before relying on them.
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