Other congenital malformations of male genital organs (Q55) ICD-10-CM
The Q55 code range covers other congenital malformations of male genital organs with 21 ICD-10-CM diagnosis codes. 18 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the Q55 Range 21 codes · 18 billable
- Q55 Other congenital malformations of male genital organsNon-billable
- Q55.0 Absence and aplasia of testis
- Q55.1 Hypoplasia of testis and scrotum
- Q55.2 Other and unspecified congenital malformations of testis and scrotumNon-billable
- Q55.20 Unspecified congenital malformations of testis and scrotum
- Q55.21 Polyorchism
- 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
- Q55.6 Other congenital malformations of penisNon-billable
- Q55.61 Curvature of penis (lateral)
- Q55.62 Hypoplasia of penis
- Q55.63 Congenital torsion of penis
- Q55.64 Hidden penis
- Q55.69 Other congenital malformation of penis
- Q55.7 Congenital vasocutaneous fistula
- Q55.8 Other specified congenital malformations of male genital organs
- Q55.9 Congenital malformation of male genital organ, unspecified
About the Q55 Code Range
These codes describe differences in male genital organs present at birth, including the testes, scrotum, penis, and other named structures.
Q55 groups the codes by organ and the type of malformation. Testis and scrotum codes distinguish absence, underdevelopment, and other or unspecified malformations. The Q55.2 branch separates named conditions from other and unspecified malformations.
Other branches distinguish malformations of the vas deferens and related organs, absence of the penis, and a congenital fistula. The Q55.6 branch separates penile curvature, underdevelopment, torsion, hidden penis, and other malformations.
Questions About This Page
How many billable codes are in the Q55 range?
Of the 21 codes in this range, 18 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the Q55 range classify?
The range classifies other congenital malformations of male genital organs. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
