G71.220 — X-linked myotubular myopathy
G71.220 is a billable, specific ICD-10-CM code for x-linked myotubular myopathy. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Myotubular (centronuclear) myopathy
Risk adjustment
G71.220 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 197 Muscular Dystrophy0.426 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
G71.220 is named in 17 Medicare coverage policies — 17 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
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How G71.220 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to G71.220.
- Myopathy›myotubular(centronuclear)
- Myopathy›myotubular›X-linked
Related codes at this level
Codes that share G71.22. If G71.220 is not quite right, the correct code is usually one of these.
Questions about G71.220
- Is G71.220 a billable ICD-10-CM code?
- Yes. G71.220 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does G71.220 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Diseases of myoneural junction and muscle (G70-G73).