Q72.23 ICD-10-CM Code: Congenital absence of both lower leg and foot, bilateral
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0) / Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)
Q72.23
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceCongenital absence of both lower leg and foot, bilateral
A birth defect where both lower legs and feet are absent from birth on both sides, but both thighs are present.
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
OfficialICD-10-CM does not list inclusion terms for Q72.23 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for Q72.23 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for Q72.23 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for Q72.23 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for Q72.23 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for Q72.23 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for Q72.23 in this effective period.
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is Q72.23 an HCC code?
No. Q72.23 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- Q72.23
- Description
- Congenital absence of both lower leg and foot, bilateral
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- 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
Q72.23 is the ICD-10-CM diagnosis code for congenital absence of both lower leg and foot, bilateral. A birth defect where both lower legs and feet are absent from birth on both sides, but both thighs are present. Q72.23 sits in the ICD-10-CM chapter for congenital malformations, deformations and chromosomal abnormalities (q00-qa0), within the section covering congenital malformations and deformations of the musculoskeletal system (q65-q79).
Q72.23 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Verify 'bilateral' is explicitly stated in documentation.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for Q72.23 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify 'bilateral' is explicitly stated in documentation
- •This significant deficiency requires early intervention and specialized prosthetic management