MCMedicalCodingSoftware
F06.4

F06.4: Anxiety disorder due to known physiological condition

Billable / specific codeICD-10-CM

F06.4 is a billable, specific ICD-10-CM code for anxiety disorder due to known physiological condition. It is valid for submission on a claim.

Check F06.4 with the rest of the claim: free scrubber

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • 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.-)

Excludes1 inherited from the categories above F06.4

A category’s note binds every code beneath it.

Written on F06: Other mental disorders due to known physiological condition

  • unspecified dementia (F03.-)

Excludes2 inherited from the categories above F06.4

Not part of this code, but both may be coded when both are present.

Written on F06: Other mental disorders due to known physiological condition

  • delirium due to known physiological condition (F05)
  • dementia as classified in F01-F02
  • other mental disorders associated with alcohol and other psychoactive substances (F10-F19)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

F06.4 is named in 18 Medicare coverage policies: 17 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which one applies depends on your Medicare contractor.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A56612Billing and Coding: CT of the Head
  • A56614Billing and Coding: Psychiatric Inpatient Hospitalization
  • A56685Billing and Coding: Partial Hospitalization Programs

Alphabetic index entries that lead here

  • Disorder›anxiety›organic
  • Disorder›organic›anxiety
  • Disorder›anxiety›due to›general medical condition

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under F06

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.