ICD-10 F31.31
ICD-10 F31.31: Bipolar disorder, current episode depressed, mild
Category
Bipolar disorders
Code Type
Mental health diagnosis
Using ICD-10 F31.31 on a Superbill
ICD-10 code F31.31 (Bipolar disorder, current episode depressed, mild) is a bipolar 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 F31.31
Common CPT codes paired with ICD-10 F31.31 include 90837 (60-min psychotherapy), 90834 (45-min psychotherapy), and 90791 (initial psychiatric evaluation). The CPT code reflects the service rendered, not the diagnosis.