Q55.0
Q55.0: Absence and aplasia of testis
Billable / specific codeICD-10-CMPOA exempt
Q55.0 is a billable, specific ICD-10-CM code for absence and aplasia of testis. It is valid for submission on a claim.
Check Q55.0 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Monorchism
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
Q55.0 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A58828Billing and Coding: Treatment of Males with Low Testosterone
Alphabetic index entries that lead here
- Anorchia, anorchism, anorchidism
- Monorchism, monorchidism
- Absence›testis(congenital)
- Agenesis›testicle
- Aplasia›testicle
- Malformation›testis and scrotum›aplasia
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under Q55
- Q55.1Hypoplasia of testis and scrotum
- Q55.2Other and unspecified congenital malformations of testis and scrotum
- Q55.3Atresia of vas deferens
- Q55.4Other congenital malformations of vas deferens, epididymis, seminal vesicles and prostate
- Q55.5Congenital absence and aplasia of penis
- Q55.6Other congenital malformations of penis
- Q55.7Congenital vasocutaneous fistula
- Q55.8Other specified congenital malformations of male genital organs
- Q55.9Congenital malformation of male genital organ, unspecified