ICD-10-CM 2027 diagnosis code

Q64Other congenital malformations of urinary system

Not billable — use a more specific code

Q64 is a header code, so it can't be reported by itself. Choose one of the 10 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Q64

Q64 is the ICD-10-CM diagnosis code for other congenital malformations of urinary system. It belongs to block Q60-Q64 (congenital malformations of the urinary system) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: Q64.0 (epispadias), Q64.1 (bladder), Q64.2 (valves), Q64.3 (neck), Q64.4 (urachus), Q64.5 (urethra), Q64.6 (bladder), Q64.7 (urethra) and 2 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under Q64

Notes that apply from higher levels

Instructions written at a parent level also apply to Q64.

Broader instructions also apply from Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders.

Code history

2016
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2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about Q64

Is Q64 billable?: No. Q64 is a header code. Report one of its more specific subcodes instead.