ICD-10 G90.09
Billable / SpecificOther idiopathic peripheral autonomic neuropathy
About ICD-10-CM G90.09
ICD-10-CM code G90.09 represents Other idiopathic peripheral autonomic neuropathy. This is a billable/specific code in the Nervous System chapter (block G90). The 2026 edition of ICD-10-CM G90.09 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under G90.09. Per CMS ICD-10-CM Tabular 2026.
- Idiopathic peripheral autonomic neuropathy NOS
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Medicare LCD Coverage for G90.09
Local Coverage Determinations (LCDs) from CMS MACs that list G90.09 as a covered diagnosis.
Showing top 10 of 199 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G90.09.
2 Aetna
2 Cigna
5 Medicare
CPT Codes Commonly Billed with G90.09
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
Convert G90.09 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| G90.09 | 33700 | 10000 |
| G90.09 | 33709 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G90.09
Other codes in section G89-G99 (Other disorders of the nervous system).
ICD-10 G90.09, Billing FAQ
Is ICD-10 code G90.09 billable? +
Yes, G90.09 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to G90.09? +
ICD-10 G90.09 includes: Idiopathic peripheral autonomic neuropathy NOS.
What CPT codes are commonly billed with G90.09? +
Procedures frequently paired with G90.09 include: 95923, 95924, 95921, 95922.
What ICD-9 codes does G90.09 map to? +
Per CMS GEMs, G90.09 maps to ICD-9 codes: 33700, 33709. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 2, 2026.
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