YOUR CONDITION, EXPLAINED
Myositis VA disability rating & claim guide
The VA rates Myositis under diagnostic code 5021, in 38 CFR § 4.71a (musculoskeletal system). This guide lists two evaluation levels for it: 10% and 0%; the code's evaluation is set through another part of the schedule, so check the criteria against the regulation.
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A CLEARER PATH FORWARD
Make sense of your next step.
01Understand the rating02Know what to gather03Plan your preparationTHE ESSENTIALS
How the VA rates Myositis
Myositis is inflammation of muscle, producing pain, swelling and weakness in the affected group. DC 5021 has no percentages of its own: it is rated as degenerative arthritis, on limitation of motion of the part the inflamed muscle moves.
DC 5021 has no percentage criteria of its own. The whole of its rating rule is the note that closes its block: "Evaluate the diseases under diagnostic codes 5013 through 5024 as degenerative arthritis, based on limitation of motion of affected parts." That routes to DC 5003, which rates "on the basis of limitation of motion under the appropriate diagnostic codes for the specific joint or joints involved (DC 5200 etc.)" — so the percentage is whatever the affected part's own code provides, and it differs part by part. There is no single ladder, and no percentage under DC 5021 turns on a creatine kinase level, an EMG or a biopsy, useful as those are for establishing the diagnosis. Only where the limitation of motion is noncompensable does a fixed 10 percent apply, per major joint or minor joint group, combined rather than added. DC 5003's own X-ray-based 20 and 10 percent ratings are expressly unavailable here: "Note (2): The 20 pct and 10 pct ratings based on X-ray findings, above, will not be utilized in rating conditions listed under diagnostic codes 5013 to 5024, inclusive." Two other provisions matter for a muscle condition. 38 CFR 4.40 states that functional loss "may be due to pain" and that weakness "is as important as limitation of motion, and a part which becomes painful on use must be regarded as seriously disabled". 38 CFR 4.59 entitles an actually painful joint to "at least the minimum compensable rating for the joint". Where the disability is loss of muscle substance from a wound rather than inflammatory disease, the muscle-injury codes of 38 CFR 4.73 (DCs 5301-5329) apply instead. Because the evaluation is assigned on the affected part, a decision letter normally shows a hyphenated code such as 5021-5201 rather than a bare 5021 (38 CFR 4.27).
- Diagnostic code
- 5021
- Rating schedule
- 38 CFR § 4.71a
- Levels in this guide
- 10% and 0%
EXPLORE THE PERCENTAGES
Myositis VA rating criteria (DC 5021)
Choose a percentage to see what that level means. Open the full comparison to read all the criteria in one place.
These are published rating criteria. Selecting a level does not predict your VA decision.
BUILD YOUR EVIDENCE, ONE PIECE AT A TIME
Evidence for your Myositis claim
A long list feels easier when you have a place to start. Use this checklist to see what you have and what still needs gathering.
Check off what you’ve gathered. Progress stays on this page until you leave or refresh.
THE EXAM FORM
Which DBQ is used for Myositis?
VA publishes its questionnaires by body system; find the one for this condition on VA's list.
Source: VA: Public Disability Benefits Questionnaires (DBQs), read September 18, 2026.
THE EVERYDAY PICTURE
What the Myositis examination has to record
The criteria above are read off an examination, and three sections of Part 4 govern what that examination has to contain. None of them is a diagnostic code, so none of them appears in the 5021 table, and all three apply to it. 38 CFR § 4.40: “Weakness is as important as limitation of motion, and a part which becomes painful on use must be regarded as seriously disabled.”
38 CFR § 4.45 lists what an examination of a joint is directed to consider:
- Less movement than normal (due to ankylosis, limitation or blocking, adhesions, tendon-tie-up, contracted scars, etc.).
- More movement than normal (from flail joint, resections, nonunion of fracture, relaxation of ligaments, etc.).
- Weakened movement (due to muscle injury, disease or injury of peripheral nerves, divided or lengthened tendons, etc.).
- Excess fatigability.
- Incoordination, impaired ability to execute skilled movements smoothly.
- Pain on movement, swelling, deformity or atrophy of disuse.
38 CFR § 4.59: “It is the intention to recognize actually painful, unstable, or malaligned joints, due to healed injury, as entitled to at least the minimum compensable rating for the joint.” So a joint that is painful on use is not a finding of nothing, even where the measured motion is close to normal.
The same section says how the joint is to be tested: “The joints involved should be tested for pain on both active and passive motion, in weight-bearing and nonweight-bearing and, if possible, with the range of the opposite undamaged joint.” An examination that records one measurement, taken once, sitting down, has not done what the section asks, and that is worth reading the exam report for.
SMALL DETAILS. BETTER PREPARATION.
Preparing your Myositis claim
Start with the practical tips, then explore the common oversights. You don’t need to work through everything at once.
Practical tips for your claim2 tips
- 01
Include muscle strength test results, since objective weakness measurement supports the severity of the inflammatory process.
- 02
Show consistent treatment and flare-up history, since this pattern helps establish myositis as a genuine, ongoing autoimmune condition rather than a one-time strain.
C&P exam pitfalls to keep in mind2 tips
- 01
Failing to connect muscle pain to a systemic inflammatory or autoimmune condition.
- 02
Lack of lab results or a muscle biopsy to confirm the diagnosis.
Common filing mistakes2 tips
- 01
Only reporting pain without a full clinical workup.
- 02
Not including a specialist evaluation to confirm the inflammatory diagnosis.
When symptoms may first appear1 tips
- 01
Myositis often has a sudden onset with pain and weakness, and can be triggered by underlying autoimmune activity.
YOUR SERVICE STORY
Military jobs associated with Myositis
THE BROADER PICTURE
Myositis by the numbers
- Approval outlook
- Moderate – diagnosis improves with specialist and lab data.
- Veterans service-connected
- ~1,200 veterans
- Typical rating awarded
- ~10%
Vetrify editorial estimates informed by VA published claims data (VBA Annual Benefits Report) and the VA rating schedule, not official VA statistics.
LET’S CLEAR A FEW THINGS UP
Common questions about Myositis
Is Myositis a VA-rated disability?
Yes. The VA rates Myositis under VASRD diagnostic code 5021 (Musculoskeletal System). Myositis is inflammation of muscle, producing pain, swelling and weakness in the affected group. DC 5021 has no percentages of its own: it is rated as degenerative arthritis, on limitation of motion of the part the inflamed muscle moves.
What VA disability rating can I get for Myositis?
This guide lists these VA ratings for Myositis: 10%, 0%; its evaluation is set through another part of the schedule, so check the criteria with the regulation. Examples: 10%: Where limitation of motion of an affected joint is objectively confirmed but noncompensable under that joint's own diagnostic code, "a rating of 10 pct is for application for each such major joint or group of minor joints affected by limitation of motion, to be combined, not added." Limitation of motion "must be objectively confirmed by findings such as swelling, muscle spasm, or satisfactory evidence of painful motion" (DC 5003); 0%: [38 CFR 4.31] Where no affected joint shows compensable or objectively confirmed limitation of motion, a zero percent evaluation is assigned.
What's the typical VA rating awarded for Myositis?
Vetrify estimates the typical rating awarded for Myositis at around 10%, based on VA claims data and the rating schedule. An estimated 1,200 veterans are service-connected for Myositis. Estimated approval outlook: Moderate – diagnosis improves with specialist and lab data.
What evidence helps prove Myositis for VA disability?
Strong evidence for a Myositis claim includes: Goniometer range-of-motion measurements, in degrees, for the joint the affected muscle group moves — this is the only thing DC 5021 rates; Examination findings recording objective painful motion, swelling or spasm, which is the confirmation DC 5003 requires before the per-joint 10 percent can be assigned; Strength testing and documentation of functional loss on repeated use, which 38 CFR 4.40 treats as "as important as limitation of motion"; Elevated creatine kinase, EMG findings, MRI or muscle biopsy, and the rheumatologist's or neurologist's diagnosis, which establish the disease even though they do not set the percentage.
What mistakes should veterans avoid when claiming Myositis?
Common pitfalls when filing for Myositis: Only reporting pain without a full clinical workup; Not including a specialist evaluation to confirm the inflammatory diagnosis.
Official sources
- 38 CFR § 4.71a, Schedule of ratings, musculoskeletal system (Diagnostic Code 5021)
- 38 CFR § 4.40, functional loss
- 38 CFR § 4.45, the joints
- 38 CFR § 4.59, painful motion
Criteria in quotation marks are the regulation’s own words; everything else on this page is Vetrify’s summary of it. The eCFR text is authoritative. See how Vetrify derives its numbers.
How these figures are checked: our methodology and the open dataset.
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