VA Disability Rating for Myositis

Diagnostic Code 5021 · 38 CFR §4.71a

What Is It?

DC 5021 has no percentage column. That is the first thing to understand about a myositis claim, and it changes how the claim should be built. Myositis sits in a block of the schedule — diagnostic codes 5013 through 5024 — governed by a single instruction: "Evaluate the diseases under diagnostic codes 5013 through 5024 as degenerative arthritis, based on limitation of motion of affected parts." There is no myositis severity ladder to argue your way up. The evaluation comes from what the affected joints can no longer do, measured in degrees, under whichever limitation-of-motion code covers that body part. Myositis in the shoulders is evaluated on shoulder motion; myositis in the hips and thighs on hip and thigh motion. If several joints are involved, several codes may be in play, and they combine under 38 CFR 4.25. Two rules do most of the work at the low end. Under DC 5003, where the limitation of motion of the specific joint is noncompensable under the appropriate code, a 10 percent evaluation applies for each such major joint or group of minor joints affected. And under 38 CFR 4.59, an actually painful joint is entitled to at least the minimum compensable rating for that joint. One caution: DC 5003's Note (2) states that the 20 and 10 percent ratings based on X-ray findings will not be used in rating conditions listed under diagnostic codes 5013 to 5024. So the two-or-more-joints X-ray shortcut is expressly closed to a myositis claim — the route runs through motion and through painful motion. Myositis is inflammation of muscle producing weakness, swelling and pain. It arrives through autoimmune disease such as polymyositis and dermatomyositis, through infection, as a drug reaction, or after injury. The weakness is characteristically proximal — hips, thighs, shoulders, upper arms — which is why the first complaints are stairs, standing from a chair, and lifting overhead. Complications outside the musculoskeletal system, including interstitial lung disease and swallowing difficulty, are evaluated under their own body systems rather than under this code.

Rating Criteria

Evidence Needed

• Range of motion in degrees for every joint the myositis affects, measured actively and passively and in weight-bearing where the joint bears weight. This is the evidence the evaluation is actually built from — the diagnosis alone produces no percentage under this code.
• A clear statement of which joints are involved and whether each is a major joint or a group of minor joints. That distinction drives DC 5003's per-joint 10 percent where motion is noncompensable.
• Documentation of pain on motion, and specifically where in the arc the pain begins. Under 38 CFR 4.59 this is what supports the minimum compensable rating for a joint that still moves reasonably well.
• Laboratory evidence of the inflammatory process — creatine kinase and other muscle enzymes, and any autoantibody panel — to establish the diagnosis and its activity.
• Muscle biopsy, electromyography showing a myopathic pattern, or MRI showing muscle inflammation, where any of those were done.
• Strength testing recorded joint by joint rather than as a general impression, plus a description of what the weakness prevents.
• A record of flare-ups: frequency, duration, and the additional loss of motion during one. Inflammatory myositis fluctuates, and a single good-day measurement understates it.
• Evidence for any complication outside the musculoskeletal system — pulmonary function testing for interstitial lung disease, swallowing studies for dysphagia — since those are evaluated separately under their own body systems.

C&P Exam Tips

• Understand before you walk in that the examiner's goniometer is the rating. Nothing about the diagnosis, the enzyme levels, or the biopsy produces a percentage by itself under DC 5021 — the degrees do.
• Have every affected joint measured, not just the worst one. Each major joint or group of minor joints with noncompensable motion can carry its own 10 percent under DC 5003.
• Stop the movement where the pain starts and say so. Range of motion is supposed to be recorded to the point pain begins, and pushing past it documents a joint you do not have.
• Ask that painful motion be noted explicitly for each joint. That finding is what 38 CFR 4.59 operates on.
• Demonstrate the proximal weakness — rising from a chair without using your arms, lifting overhead, climbing a step. Those are the movements this disease takes first.
• Bring recent laboratory results and any biopsy or EMG report, and say whether you are on immunosuppressive treatment and what it has changed.
• Describe flare-ups concretely and ask the examiner to estimate the additional loss of motion during one.
• Mention any skin rash if you have dermatomyositis, and any shortness of breath or trouble swallowing — those point to separate evaluations under other body systems.

How to File

File for myositis by name, and then file for the joints. Because DC 5021 carries no percentage, a claim that says only "myositis" gives the rater a diagnosis and no measurements to evaluate. Name the affected joints — "myositis with limitation of motion of both hips and both shoulders" — so that the examination is scoped to measure them. Ask that range of motion be recorded for each involved joint, and that painful motion be noted separately. Where motion is noncompensable under the joint's own code, DC 5003 supplies 10 percent for each major joint or group of minor joints affected, and 38 CFR 4.59 entitles an actually painful joint to at least the minimum compensable rating. Multiple joints mean multiple evaluations, combined under 38 CFR 4.25 rather than averaged. Do not build the claim around X-ray findings of multi-joint involvement. DC 5003 Note (2) closes that route for every condition in the 5013 to 5024 block, this one included. Claim the systemic complications separately and under their own body systems — interstitial lung disease and swallowing impairment are not musculoskeletal evaluations and will not be captured by a joint measurement.

Common Mistakes

Expecting a severity ladder. DC 5021 has no percentages at all, and a claim argued in terms of mild, moderate or severe myositis has no criteria to land on. Having only the worst joint measured. Every affected major joint or group of minor joints can carry its own evaluation, and unmeasured joints are unrated joints. Building the case on enzyme levels and biopsy findings. Those establish the diagnosis, which is necessary — but the evaluation comes from motion. Relying on the X-ray route under DC 5003. Note (2) expressly bars the 20 and 10 percent X-ray ratings for conditions under diagnostic codes 5013 to 5024. Letting the examiner push past the point where pain begins, which produces a measurement that overstates the joint and forfeits 38 CFR 4.59. Filing lung or swallowing complications as part of the myositis claim. They are evaluated under their own body systems and need to be claimed there.

Frequently Asked Questions

What percentage does DC 5021 pay?

None on its own. Diagnostic code 5021 appears in the schedule as a title with no percentage column. The Note covering diagnostic codes 5013 through 5024 directs that these diseases be evaluated as degenerative arthritis, based on limitation of motion of the affected parts, so the percentage comes from the limitation-of-motion code for whichever joints are involved.

So how does a myositis claim reach a compensable rating?

Through motion. If the affected joint's limitation of motion is compensable under its own code, that is the evaluation. If it is noncompensable, DC 5003 provides 10 percent for each major joint or group of minor joints affected. And under 38 CFR 4.59, a joint that is actually painful is entitled to at least the minimum compensable rating for that joint. Several affected joints produce several evaluations, combined under 38 CFR 4.25.

Can I use X-ray evidence of two or more joints to get 10 or 20 percent?

Not for myositis. DC 5003's Note (2) states that the 20 and 10 percent ratings based on X-ray findings will not be utilized in rating conditions listed under diagnostic codes 5013 to 5024, and myositis is DC 5021, inside that block. The X-ray shortcut is available for degenerative arthritis itself but expressly closed to the conditions that route into it.

Is myositis rated under the muscle injury codes in 38 CFR 4.73?

No. Those codes cover muscle injuries — the residuals of wounds, and they are graded slight, moderate, moderately severe and severe on the mechanism and course of the injury. Myositis is an inflammatory disease of muscle and sits in 38 CFR 4.71a among the diseases at DC 5021, which routes to limitation of motion rather than to the muscle group codes.

What about the lung and swallowing problems from dermatomyositis?

They are evaluated under their own body systems and should be claimed by name. Interstitial lung disease is evaluated on pulmonary function testing under the respiratory codes, and swallowing impairment under the digestive codes. Neither will be captured by a joint measurement, and neither is folded into a musculoskeletal evaluation.

My myositis flares. How is that accounted for?

Through the record rather than through a separate criterion. Ask the examiner to document the frequency and duration of flare-ups and to estimate the additional loss of motion during one, and describe in your own statement what the joints will not do while a flare is happening. A single measurement taken on a quiet day is the most common reason an inflammatory condition evaluates lower than it functions.