Q55: Other congenital malformations of male genital organs
Codes under Q55 (Other congenital malformations of male genital organs). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| Q55.0 | Absence and aplasia of testis | ✓ |
| Q55.0 | Absence and aplasia of testis | ✓ |
| Q55.1 | Hypoplasia of testis and scrotum | ✓ |
| Q55.1 | Hypoplasia of testis and scrotum | ✓ |
| Q55.2 | Other and unspecified congenital malformations of testis and scrotum | — |
| Q55.2 | Other and unspecified congenital malformations of testis and scrotum | — |
| Q55.3 | Atresia of vas deferens | ✓ |
| Q55.3 | Atresia of vas deferens | ✓ |
| Q55.4 | Other congenital malformations of vas deferens, epididymis, seminal vesicles and prostate | ✓ |
| Q55.4 | Other congenital malformations of vas deferens, epididymis, seminal vesicles and prostate | ✓ |
| Q55.5 | Congenital absence and aplasia of penis | ✓ |
| Q55.5 | Congenital absence and aplasia of penis | ✓ |
| Q55.6 | Other congenital malformations of penis | — |
| Q55.6 | Other congenital malformations of penis | — |
| Q55.7 | Congenital vasocutaneous fistula | ✓ |
| Q55.7 | Congenital vasocutaneous fistula | ✓ |
| Q55.8 | Other specified congenital malformations of male genital organs | ✓ |
| Q55.8 | Other specified congenital malformations of male genital organs | ✓ |
| Q55.9 | Congenital malformation of male genital organ, unspecified | ✓ |
| Q55.9 | Congenital malformation of male genital organ, unspecified | ✓ |
| Q55.20 | Unspecified congenital malformations of testis and scrotum | ✓ |
| Q55.20 | Unspecified congenital malformations of testis and scrotum | ✓ |
| Q55.21 | Polyorchism | ✓ |
| Q55.21 | Polyorchism | ✓ |
| Q55.22 | Retractile testis | ✓ |
| Q55.22 | Retractile testis | ✓ |
| Q55.23 | Scrotal transposition | ✓ |
| Q55.23 | Scrotal transposition | ✓ |
| Q55.29 | Other congenital malformations of testis and scrotum | ✓ |
| Q55.29 | Other congenital malformations of testis and scrotum | ✓ |
| Q55.61 | Curvature of penis (lateral) | ✓ |
| Q55.61 | Curvature of penis (lateral) | ✓ |
| Q55.62 | Hypoplasia of penis | ✓ |
| Q55.62 | Hypoplasia of penis | ✓ |
| Q55.63 | Congenital torsion of penis | ✓ |
| Q55.63 | Congenital torsion of penis | ✓ |
| Q55.64 | Hidden penis | ✓ |
| Q55.64 | Hidden penis | ✓ |
| Q55.69 | Other congenital malformation of penis | ✓ |
| Q55.69 | Other congenital malformation of penis | ✓ |
Frequently asked questions
What is ICD-10-CM code Q55?
Q55 is an ICD-10-CM category covering Other congenital malformations of male genital organs. It contains 40 more specific diagnosis codes, 36 of which are billable.
Is Q55 a billable code?
No — Q55 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example Q55.0 — Absence and aplasia of testis). 36 of the 40 codes under Q55 are billable.
What codes fall under Q55?
Q55 includes Q55.0, Q55.0, Q55.1, Q55.1, Q55.2, plus 35 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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