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Q64.3

Q64.3Other atresia and stenosis of urethra and bladder neck

Non-billable headerICD-10-CM

Q64.3 is a non-billable header ICD-10-CM code for other atresia and stenosis of urethra and bladder neck. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with Q64.3

These codes carry an Excludes1 note pointing at Q64.3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q64.3 alone.

  • N32.0Bladder-neck obstruction
  • N35Urethral stricture

Risk adjustment

Q64.3 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.

Code to one of these instead Q64.3

4 child codes. Green means billable.

Related codes at this level

Codes that share Q64. If Q64.3 is not quite right, the correct code is usually one of these.

Questions about Q64.3

Is Q64.3 a billable ICD-10-CM code?
No. Q64.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Q64.3 sit in the tabular list?
Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of the urinary system (Q60-Q64).
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.