F98.9 — Unspecified behavioral and emotional disorders with onset usually occurring in childhood and adolescence
F98.9 is a billable, specific ICD-10-CM code for unspecified behavioral and emotional disorders with onset usually occurring in childhood and adolescence. It is valid for submission on a claim.
Excludes2 inherited from the categories above F98.9
Also inherited, and the opposite of Excludes1: these conditions are not part of F98.9, but a patient can have both, so you may code both.
Written on F98 — Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence
Risk adjustment
F98.9 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
F98.9 is named in 3 Medicare coverage policies — 2 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
- A57520Billing and Coding: Psychiatric Diagnostic Evaluation and Psychotherapy Services
- A57780Billing and Coding: Psychological and Neuropsychological Tests
How F98.9 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 F98.9.
- Disturbance›habit, child
- Habit, habituation›disturbance, child
- Disorder›mental›infancy, childhood or adolescence
Code history
F98.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share F98. If F98.9 is not quite right, the correct code is usually one of these.
- F98.0Enuresis not due to a substance or known physiological condition
- F98.1Encopresis not due to a substance or known physiological condition
- F98.2Other feeding disorders of infancy and childhood
- F98.3Pica of infancy and childhood
- F98.4Stereotyped movement disorders
- F98.5Adult onset fluency disorder
- F98.8Other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence
Questions about F98.9
- Is F98.9 a billable ICD-10-CM code?
- Yes. F98.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F98.9 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).