MCMCB Pro
F98.8

F98.8Other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence

Billable / specific codeICD-10-CM

F98.8 is a billable, specific ICD-10-CM code for other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence. It is valid for submission on a claim.

Inclusion terms

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

  • Excessive masturbation
  • Nail-biting
  • Nose-picking
  • Thumb-sucking

Other codes that can never be billed with F98.8

These codes carry an Excludes1 note pointing at F98.8. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading F98.8 alone.

  • F42.4Excoriation (skin-picking) disorder

Risk adjustment

F98.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

F98.8 is named in 10 Medicare coverage policies 9 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A56685Billing and Coding: Partial Hospitalization Programs
  • A56850Billing and Coding: Psychiatric Partial Hospitalization Programs
  • A56937Billing and Coding: Psychiatry and Psychology Services

How F98.8 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to F98.8.

  • Masturbation(excessive)
  • Nose-picking
  • Onanism(excessive)
  • Onychophagia
  • Picking, nose
  • Sucking thumb, child(excessive)
  • Attentiondeficit disorder or syndrome
  • Deficiency, deficientattention(disorder) (syndrome)
  • Disorderattention-deficit without hyperactivity(adolescent) (adult) (child)
  • Impediment, speechpsychogenic(childhood)
  • Nailbiting
  • Thumbsucking(child problem)

Related codes at this level

Codes that share F98. If F98.8 is not quite right, the correct code is usually one of these.

Questions about F98.8

Is F98.8 a billable ICD-10-CM code?
Yes. F98.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does F98.8 sit in the tabular list?
Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90-F98).
ICD-10-CMFY2026-Apr· effective April 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.