MCMedicalCodingSoftware
F51.05

F51.05: Insomnia due to other mental disorder

Billable / specific codeICD-10-CM

F51.05 is a billable, specific ICD-10-CM code for insomnia due to other mental disorder. It is valid for submission on a claim.

Check F51.05 with the rest of the claim: free scrubber

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

  • associated mental disorder

Excludes2 inherited from the categories above F51.05

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

Written on F51.0: Insomnia not due to a substance or known physiological condition

Written on F51: Sleep disorders not due to a substance or known physiological condition

  • organic sleep disorders (G47.-)

Risk adjustment

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

Medicare coverage

F51.05 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56612Billing and Coding: CT of the Head
  • A56818Billing and Coding: Urine Drug Testing
  • A56937Billing and Coding: Psychiatry and Psychology Services
  • A57065Billing and Coding: Outpatient Psychiatry and Psychology Services

Alphabetic index entries that lead here

  • Insomnia›psychiatric
  • Insomnia›related to psychopathology
  • Insomnia›due to›anxiety disorder
  • Insomnia›due to›depression
  • Insomnia›due to›mental disorder NEC

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under F51.0

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.