Q64.39 ICD-10-CM Code: Other atresia and stenosis of urethra and bladder neck
Q64.39 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · free HCC coding tools
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FY 2026 Apr update / Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0) / Congenital malformations of the urinary system (Q60-Q64)
Q64.39
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceOther atresia and stenosis of urethra and bladder neck
A birth defect involving abnormal narrowing or absence of the urethra or bladder neck that doesn't fit other specific categories.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Atresia and stenosis of urethra and bladder neck NOS
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for Q64.39 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for Q64.39 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for Q64.39 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for Q64.39 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for Q64.39 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for Q64.39 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is Q64.39 an HCC code?
No. Q64.39 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- Q64.39
- Description
- Other atresia and stenosis of urethra and bladder neck
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Q64.39 is the ICD-10-CM diagnosis code for other atresia and stenosis of urethra and bladder neck. A birth defect involving abnormal narrowing or absence of the urethra or bladder neck that doesn't fit other specific categories. Q64.39 sits in the ICD-10-CM chapter for congenital malformations, deformations and chromosomal abnormalities (q00-qa0), within the section covering congenital malformations of the urinary system (q60-q64).
Q64.39 is a billable ICD-10-CM code, but the current payload does not show a mapping under the CMS-HCC V28, V24, ESRD, or RxHCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.
Use this code for atresia (complete absence) or stenosis (narrowing) not specified elsewhere.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for Q64.39 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code for atresia (complete absence) or stenosis (narrowing) not specified elsewhere
- •Document the specific anatomical location and extent of the obstruction