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G47.00

G47.00: Insomnia, unspecified

Billable / specific codeICD-10-CM

G47.00 is a billable, specific ICD-10-CM code for insomnia, unspecified. It is valid for submission on a claim.

Check G47.00 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Insomnia NOS

Excludes2 inherited from the categories above G47.00

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

Written on G47.0: Insomnia

Written on G47: Sleep disorders

  • nightmares (F51.5)
  • nonorganic sleep disorders (F51.-)
  • sleep terrors (F51.4)
  • sleepwalking (F51.3)

Risk adjustment

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

Medicare coverage

G47.00 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56937Billing and Coding: Psychiatry and Psychology Services
  • A57065Billing and Coding: Outpatient Psychiatry and Psychology Services
  • A57480Billing and Coding: Psychiatry and Psychology Services

Alphabetic index entries that lead here

  • Insomnia(organic)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under G47.0

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.