ICD-10-CM 2027
ICD-10 code for psychosexual development problem
From the official ICD-10-CM alphabetic index entry “Problem (with) (related to) › psychosexual (development)”. Page updated September 29, 2026.
About coding psychosexual development problem
The ICD-10-CM code for psychosexual development problem is F66 (Other sexual disorders).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 887 (Other Mental Disorder Diagnoses, relative weight 1.1139), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Common questions about psychosexual development problem ICD-10 codes
What is the ICD-10 code for psychosexual development problem?
- F66 — Other sexual disorders.
Is F66 billable?
- Yes. F66 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F66 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F66 as a principal diagnosis.
Is F66 a CC or MCC?
- No. F66 is neither a CC nor an MCC under MS-DRG v44.0.