Q55.5 Congenital absence and aplasia of penis

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applies from Q55 Other congenital malformations of male genital organs

Excludes1 (never code together)

• congenital hydrocele (P83.5)
• hypospadias (Q54.-)

MS-DRG index

Defines the logic of DRG(s) 729-730 in MDC 12.

Approximate ICD-9-CM (GEMs)

• 752.69 Other penile anomalies (approximate)

Diagnosis Index entries for Q55.5

• Absence (of) (organ or part) (complete or partial) › penis (congenital)
• Agenesis › penis
• Aplasia › penis
• Malformation (congenital) › penis › aplasia

Nearby codes

• Q55.22 Retractile testis
• Q55.23 Scrotal transposition
• Q55.29 Other congenital malformations of testis and scrotum
• Q55.3 Atresia of vas deferens
• Q55.4 Other congenital malformations of vas deferens, epididymis, seminal vesicles and prostate
• Q55.5 Congenital absence and aplasia of penis (this code)
• Q55.6 Other congenital malformations of penis
• Q55.61 Curvature of penis (lateral)
• Q55.62 Hypoplasia of penis
• Q55.63 Congenital torsion of penis
• Q55.64 Hidden penis