ICD-10 F10.21
Billable / Specific HCC v28: 55Alcohol dependence, in remission
About ICD-10-CM F10.21
ICD-10-CM code F10.21 represents Alcohol dependence, in remission. This is a billable/specific code in the Mental, Behavioral, and Neurodevelopmental chapter (block F10). The 2026 edition of ICD-10-CM F10.21 became effective on October 1, 2025.
Coding Tips for F10.21
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
F10.21 is a CMS-HCC v28 risk-adjustment code (category 55). To count for the patient Risk Adjustment Factor (RAF), document the diagnosis with MEAT language each calendar year: Monitored, Evaluated, Assessed, Treated. A diagnosis on the problem list alone does not satisfy CMS RADV audit standards. Include the diagnosis in the assessment with current status and current treatment plan.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under F10.21. Per CMS ICD-10-CM Tabular 2026.
- Alcohol use disorder, moderate, in early remission
- Alcohol use disorder, moderate, in sustained remission
- Alcohol use disorder, severe, in early remission
- Alcohol use disorder, severe, in sustained remission
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 F10.21
Local Coverage Determinations (LCDs) from CMS MACs that list F10.21 as a covered diagnosis.
Showing top 10 of 163 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing F10.21.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with F10.21
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
Convert F10.21 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 |
|---|---|---|
| F10.21 | 30393 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To F10.21
Other codes in section F10-F19 (Mental and behavioral disorders due to psychoactive substance use).
ICD-10 F10.21, Billing FAQ
Is ICD-10 code F10.21 billable? +
Yes, F10.21 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 F10.21? +
ICD-10 F10.21 includes: Alcohol use disorder, moderate, in early remission; Alcohol use disorder, moderate, in sustained remission; Alcohol use disorder, severe, in early remission, and 1 more clinical synonyms.
Does F10.21 affect Medicare Advantage HCC risk adjustment? +
Yes. F10.21 maps to CMS-HCC v28 category 55. Capture this diagnosis annually for accurate Medicare Advantage risk score.
What CPT codes are commonly billed with F10.21? +
Procedures frequently paired with F10.21 include: G0323, G0570, G0409.
What ICD-9 codes does F10.21 map to? +
Per CMS GEMs, F10.21 maps to ICD-9 codes: 30393. 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 May 31, 2026.
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