ICD-10-CM 2027
ICD-10 code for behavior
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Behavior”. Page updated September 29, 2026.
About coding behavior
The official ICD-10-CM index doesn't give a single default code for behavior; the code depends on the details below.
More specific behavior codes (official index)
- antisocial
- adult Z72.811 — Adult antisocial behavior
- child or adolescent Z72.810 — Child and adolescent antisocial behavior
- disorder, disturbance
- disruptive
- drug seeking Z76.5 — Malingerer [conscious simulation]
- inexplicable R46.2 — Strange and inexplicable behavior
- marked evasiveness R46.5 — Suspiciousness and marked evasiveness
- obsessive-compulsive R46.81 — Obsessive-compulsive behavior
- overactivity R46.3 — Overactivity
- poor responsiveness R46.4 — Slowness and poor responsiveness
- self-damaging (life-style) Z72.89 — Other problems related to lifestyle
- sleep-incompatible Z72.821 — Inadequate sleep hygiene
- slowness R46.4 — Slowness and poor responsiveness
- specified NEC R46.89 — Other symptoms and signs involving appearance and behavior
- strange (and inexplicable) R46.2 — Strange and inexplicable behavior
- suspiciousness R46.5 — Suspiciousness and marked evasiveness
- type A pattern Z73.1 — Type A behavior pattern
- undue concern or preoccupation with stressful events R46.6 — Undue concern and preoccupation with stressful events
- verbosity and circumstantial detail obscuring reason for contact R46.7 — Verbosity and circumstantial detail obscuring reason for contact
Common questions about behavior ICD-10 codes
What is the ICD-10 code for drug seeking behavior?
- Z76.5 — Malingerer [conscious simulation].
What is the ICD-10 code for inexplicable behavior?
- R46.2 — Strange and inexplicable behavior.
What is the ICD-10 code for marked evasiveness behavior?
- R46.5 — Suspiciousness and marked evasiveness.
What is the ICD-10 code for obsessive-compulsive behavior?
- R46.81 — Obsessive-compulsive behavior.
What is the ICD-10 code for overactivity behavior?
- R46.3 — Overactivity.
What is the ICD-10 code for poor responsiveness behavior?
- R46.4 — Slowness and poor responsiveness.
What is the ICD-10 code for self-damaging behavior?
- Z72.89 — Other problems related to lifestyle.