F42.9 Obsessive-compulsive disorder, unspecified

Billable ICD-10-CM code, FY2026.

Applies from F42 Obsessive-compulsive disorder

Excludes2 (not included here)

• obsessive-compulsive personality (disorder) (F60.5)
• obsessive-compulsive symptoms occurring in depression (F32.-, F33.-)
• obsessive-compulsive symptoms occurring in schizophrenia (F20.-)

Risk adjustment (HCC)

• RxHCC V08: HCC 133 — Anxiety and Other Psychiatric Disorders

MS-DRG index

Defines the logic of DRG(s) 882 in MDC 19.

Approximate ICD-9-CM (GEMs)

• 300.3 Obsessive-compulsive disorders (approximate)

Code annotations containing back-references to F42.9

Back-references to F42

• Type 2 Excludes: F60.5 Obsessive-compulsive personality disorder ("obsessive-compulsive disorder (F42.-)")
• Type 2 Excludes: F93.0 Separation anxiety disorder of childhood ("nonpsychotic mental disorders (F40-F48)")
• Type 2 Excludes: F98 Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence ("obsessive-compulsive disorder (F42.-)")
• Type 2 Excludes: F98.4 Stereotyped movement disorders ("compulsions in obsessive-compulsive disorder (F42.-)")
• Type 1 Excludes: R46.81 Obsessive-compulsive behavior ("obsessive-compulsive disorder (F42.-)")

Diagnosis Index entries for F42.9

• Disorder (of) › obsessive-compulsive

Nearby codes

• F42 Obsessive-compulsive disorder
• F42.2 Mixed obsessional thoughts and acts
• F42.3 Hoarding disorder
• F42.4 Excoriation (skin-picking) disorder
• F42.8 Other obsessive-compulsive disorder
• F42.9 Obsessive-compulsive disorder, unspecified (this code)