ICD-10 F34.1
Billable / SpecificDysthymic disorder
About ICD-10-CM F34.1
ICD-10-CM code F34.1 represents Dysthymic disorder. This is a billable/specific code in the Mental, Behavioral, and Neurodevelopmental chapter (block F34). The 2026 edition of ICD-10-CM F34.1 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under F34.1. Per CMS ICD-10-CM Tabular 2026.
- Depressive neurosis
- Depressive personality disorder
- Dysthymia
- Neurotic depression
- Persistent anxiety depression
- Persistent depressive disorder
Type 2 Excludes
Not included here, the excluded code is not part of F34.1, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- anxiety depression (mild or not persistent) (F41.8)
Medicare LCD Coverage for F34.1
Local Coverage Determinations (LCDs) from CMS MACs that list F34.1 as a covered diagnosis.
Showing top 10 of 215 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing F34.1.
5 Medicare
1 Aetna
CPT Codes Commonly Billed with F34.1
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert F34.1 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 |
|---|---|---|
| F34.1 | 3004 | 10000 |
| F34.1 | 30112 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To F34.1
Other codes in section F30-F39 (Mood [affective] disorders).
ICD-10 F34.1, Billing FAQ
Is ICD-10 code F34.1 billable? +
Yes, F34.1 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 F34.1? +
ICD-10 F34.1 includes: Depressive neurosis; Depressive personality disorder; Dysthymia, and 3 more clinical synonyms.
What codes are Type 2 Excludes for F34.1? +
Type 2 Excludes (may be coded together when both conditions exist): anxiety depression (mild or not persistent) (F41.8)
What ICD-9 codes does F34.1 map to? +
Per CMS GEMs, F34.1 maps to ICD-9 codes: 3004, 30112. 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 July 18, 2026.
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