ICD-10 F81.81
ICD-10 F81.81: Disorder of written expression
Category
Developmental disorders
Code Type
Mental health diagnosis
Using ICD-10 F81.81 on a Superbill
ICD-10 code F81.81 (Disorder of written expression) is a developmental 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 F81.81
Common CPT codes paired with ICD-10 F81.81 include 90837 (60-min psychotherapy), 90834 (45-min psychotherapy), and 90791 (initial psychiatric evaluation). The CPT code reflects the service rendered, not the diagnosis.
Note: Dysgraphia.