G11.19 — Other early-onset cerebellar ataxia
G11.19 is a billable, specific ICD-10-CM code for other early-onset cerebellar ataxia. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Early-onset cerebellar ataxia with essential tremor
- Early-onset cerebellar ataxia with myoclonus [Hunt's ataxia]
- Early-onset cerebellar ataxia with retained tendon reflexes
- X-linked recessive spinocerebellar ataxia
Risk adjustment
G11.19 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 200 Friedreich and Other Hereditary Ataxias; Huntington Disease0.279 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
G11.19 is named in 19 Medicare coverage policies — 19 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53057Billing and Coding: Home Health Occupational Therapy
- A53058Billing and Coding: Home Health Physical Therapy
- A53064Billing and Coding: Outpatient Occupational Therapy
- A53065Billing and Coding: Outpatient Physical Therapy
How G11.19 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 G11.19.
- Ataxia, ataxy, ataxic›Hunt's
- Ataxia, ataxy, ataxic›spinocerebellar, X-linked recessive
- Dyssynergia›cerebellaris myoclonica(Hunt's ataxia)
- Ramsay-Hunt disease or syndrome›meaning dyssynergia cerebellaris myoclonica
- Disease, diseased›Hunt's›dyssynergia cerebellaris myoclonica
- Hunt's›disease or syndrome›dyssynergia cerebellaris myoclonica
- Syndrome›Hunt's›dyssynergia cerebellaris myoclonica
- Ataxia, ataxy, ataxic›cerebellar›with›essential tremor
- Ataxia, ataxy, ataxic›cerebellar›with›myoclonus [Hunt's ataxia]
- Ataxia, ataxy, ataxic›cerebellar›with›retained tendon reflexes
Related codes at this level
Codes that share G11.1. If G11.19 is not quite right, the correct code is usually one of these.
Questions about G11.19
- Is G11.19 a billable ICD-10-CM code?
- Yes. G11.19 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does G11.19 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Systemic atrophies primarily affecting the central nervous system (G10-G14).