ICD-10-CM 2027
ICD-10 code for Micropenis
From the official ICD-10-CM alphabetic index entry “Micropenis”. Page updated September 29, 2026.
About coding Micropenis
The ICD-10-CM code for Micropenis is Q55.62 (Hypoplasia of penis).
Within Q55.6 (other congenital malformations of penis), Q55.62 is specifically for hypoplasia of penis. Related codes cover curvature of penis (lateral) (Q55.61), congenital torsion of penis (Q55.63), Hidden penis (Q55.64) and other congenital malformation of penis (Q55.69).
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 729 (Other Male Reproductive System Diagnoses with CC/MCC, relative weight 1.0544) and DRG 730 (Other Male Reproductive System Diagnoses without CC/MCC, relative weight 0.6597), in MDC 12 (Diseases and Disorders of the Male Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Micropenis ICD-10 codes
What is the ICD-10 code for Micropenis?
- Q55.62 — Hypoplasia of penis.
Is Q55.62 billable?
- Yes. Q55.62 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q55.62 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q55.62 as a principal diagnosis.
Is Q55.62 a CC or MCC?
- No. Q55.62 is neither a CC nor an MCC under MS-DRG v44.0.