ICD-10 F06.4
Billable / SpecificAnxiety disorder due to known physiological condition
About ICD-10-CM F06.4
ICD-10-CM code F06.4 represents Anxiety disorder due to known physiological condition. This is a billable/specific code in the Mental, Behavioral, and Neurodevelopmental chapter (block F06). The 2026 edition of ICD-10-CM F06.4 became effective on October 1, 2025.
Type 2 Excludes
Not included here, the excluded code is not part of F06.4, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- anxiety disorders due to alcohol and other psychoactive substances (F10-F19 with .180, .280, .980)
- anxiety disorders, not due to known physiological condition or unspecified (F40.-, F41.-)
Medicare LCD Coverage for F06.4
Local Coverage Determinations (LCDs) from CMS MACs that list F06.4 as a covered diagnosis.
Showing top 10 of 357 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing F06.4.
5 Medicare
CPT Codes Commonly Billed with F06.4
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 96121 CMS LCD: Billing and Coding: Psychiatric Partial Hospitalization Programs CMS LCD
- 96137 CMS LCD: Billing and Coding: Psychiatric Partial Hospitalization Programs CMS LCD
- 96116 CMS LCD: Billing and Coding: Psychiatric Partial Hospitalization Programs CMS LCD
- 96132 CMS LCD: Billing and Coding: Psychiatric Partial Hospitalization Programs CMS LCD
- 90838 CMS LCD: Billing and Coding: Psychiatric Partial Hospitalization Programs CMS LCD
- G0177 CMS LCD: Billing and Coding: Psychiatric Partial Hospitalization Programs CMS LCD
- 96146 CMS LCD: Billing and Coding: Psychiatric Partial Hospitalization Programs CMS LCD
- 90846 CMS LCD: Billing and Coding: Psychiatric Partial Hospitalization Programs CMS LCD
- G0411 CMS LCD: Billing and Coding: Psychiatric Partial Hospitalization Programs CMS LCD
- 96112 CMS LCD: Billing and Coding: Psychiatric Partial Hospitalization Programs CMS LCD
Convert F06.4 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 |
|---|---|---|
| F06.4 | 29384 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To F06.4
Other codes in section F01-F09 (Mental disorders due to known physiological conditions).
ICD-10 F06.4, Billing FAQ
Is ICD-10 code F06.4 billable? +
Yes, F06.4 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 2 Excludes for F06.4? +
Type 2 Excludes (may be coded together when both conditions exist): anxiety disorders due to alcohol and other psychoactive substances (F10-F19 with .180, .280, .980); anxiety disorders, not due to known physiological condition or unspecified (F40.-, F41.-)
What CPT codes are commonly billed with F06.4? +
Procedures frequently paired with F06.4 include: 96121, 96137, 96116, 96132, 90838.
What ICD-9 codes does F06.4 map to? +
Per CMS GEMs, F06.4 maps to ICD-9 codes: 29384. 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 16, 2026.
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