R46.81 Obsessive-compulsive behavior

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• obsessive-compulsive disorder (F42.-)

Applies from R46 Symptoms and signs involving appearance and behavior

Excludes1 (never code together)

• appearance and behavior in schizophrenia, schizotypal and delusional disorders (F20-F29)
• mental and behavioral disorders (F01-F99)

MS-DRG index

Defines the logic of DRG(s) 951 in MDC 23.

Approximate ICD-9-CM (GEMs)

• 799.89 Other ill-defined conditions (approximate)
• V40.39 Other specified behavioral problem (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Diagnosis Index entries for R46.81

• Behavior › obsessive-compulsive

Nearby codes

• R46.4 Slowness and poor responsiveness
• R46.5 Suspiciousness and marked evasiveness
• R46.6 Undue concern and preoccupation with stressful events
• R46.7 Verbosity and circumstantial detail obscuring reason for contact
• R46.8 Other symptoms and signs involving appearance and behavior
• R46.81 Obsessive-compulsive behavior (this code)
• R46.89 Other symptoms and signs involving appearance and behavior