MCMCB Pro
Q55.20

Q55.20Unspecified congenital malformations of testis and scrotum

Billable / specific codeICD-10-CMPOA exemptunspecified

Q55.20 is a billable, specific ICD-10-CM code for unspecified congenital malformations of testis and scrotum. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Congenital malformation of testis or scrotum NOS

Risk adjustment

Q55.20 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How Q55.20 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Q55.20.

  • Malformationtestis and scrotum

Related codes at this level

Codes that share Q55.2. If Q55.20 is not quite right, the correct code is usually one of these.

Questions about Q55.20

Is Q55.20 a billable ICD-10-CM code?
Yes. Q55.20 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q55.20 sit in the tabular list?
Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of genital organs (Q50-Q56).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.