Q55 – Other congenital malformations of male genital organs

ICD-10-CM 2027 diagnosis code · Congenital malformations of genital organs

Non-billable header

ICD-10-CM code Q55

Code: Q55 (claims format: Q55)
Description: Other congenital malformations of male genital organs
Billable: No – use a more specific code below
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

Billable codes under Q55

Q55 is a header code and cannot be used on claims. Choose the most specific code:

Q55.0 – Absence and aplasia of testisBillable
Q55.1 – Hypoplasia of testis and scrotumBillable
Q55.2 – Other and unspecified congenital malformations of testis and scrotumHeader (more codes below)
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 (more codes below)
Q55.7 – Congenital vasocutaneous fistulaBillable
Q55.8 – Other specified congenital malformations of male genital organsBillable
Q55.9 – Congenital malformation of male genital organ, unspecifiedBillable

Notes for Q55

Excludes1 (not coded here):

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

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block Q50-Q56

Excludes1 (not coded here):

androgen insensitivity syndrome (E34.5-)
syndromes associated with anomalies in the number and form of chromosomes (Q90-Q99)

Frequently asked questions

What is ICD-10 code Q55?

Q55 is the ICD-10-CM code for other congenital malformations of male genital organs, in the block Q50-Q56 (Congenital malformations of genital organs).

Is Q55 a billable code?

No. Q55 is a header code with more specific child codes; report one of the billable codes listed above.

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.