Q55.1 – Hypoplasia of testis and scrotum
ICD-10-CM 2027 diagnosis code · Congenital malformations of genital organs
ICD-10-CM code
Q55.1
- Code
Q55.1(claims format:Q551)- Description
- Hypoplasia of testis and scrotum
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q50-Q56 Congenital malformations of genital organs
- Parent codes
- Q55
Notes for Q55.1
Applicable to:
- Fusion of testes
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Q55 – Other congenital malformations of male genital organs
Block Q50-Q56
Index terms for Q55.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in Q55
- Q55.0 – Absence and aplasia of testisBillable
- Q55.2 – Other and unspecified congenital malformations of testis and scrotumHeader
- Q55.3 – Atresia of vas deferensBillable
- Q55.4 – Other congenital malformations of vas deferens, epididymis, seminal vesicles and prostateBillable
- Q55.5 – Congenital absence and aplasia of penisBillable
- Q55.6 – Other congenital malformations of penisHeader
- Q55.7 – Congenital vasocutaneous fistulaBillable
- Q55.8 – Other specified congenital malformations of male genital organsBillable
- Q55.9 – Congenital malformation of male genital organ, unspecifiedBillable
Frequently asked questions
What is ICD-10 code Q55.1?
Q55.1 is the ICD-10-CM code for hypoplasia of testis and scrotum, in the block Q50-Q56 (Congenital malformations of genital organs).
Is Q55.1 a billable code?
Yes. Q55.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Q55.1 belong to?
It belongs to category Q55 – Other congenital malformations of male genital organs.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.