ICD-10 F91.9
ICD-10 F91.9: Conduct disorder, unspecified
Category
Conduct disorders
Code Type
Mental health diagnosis
Using ICD-10 F91.9 on a Superbill
ICD-10 code F91.9 (Conduct disorder, unspecified) is a conduct disorders code used on superbills for mental health therapy billing. Insurance companies require at least one ICD-10 code per superbill to process a reimbursement claim.
CPT Codes Commonly Used With F91.9
Common CPT codes paired with ICD-10 F91.9 include 90837 (60-min psychotherapy), 90834 (45-min psychotherapy), and 90791 (initial psychiatric evaluation). The CPT code reflects the service rendered, not the diagnosis.