O22.03 ICD-10-CM Code: Varicose veins of lower extremity in pregnancy, third trimester
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FY 2026 Apr update / Pregnancy, childbirth and the puerperium (O00-O9A) / Other maternal disorders predominantly related to pregnancy (O20-O29)
O22.03
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceVaricose veins of lower extremity in pregnancy, third trimester
Enlarged, twisted veins in the legs that develop or worsen during the third trimester (weeks 21 through delivery) of pregnancy.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
MappedHCC 212
Varies by metal level
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Varicose veins NOS in pregnancy
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for O22.03 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for O22.03 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for O22.03 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for O22.03 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for O22.03 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for O22.03 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 O22.03 an HCC code?
No. O22.03 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- O22.03
- Description
- Varicose veins of lower extremity in pregnancy, third trimester
- 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
O22.03 is the ICD-10-CM diagnosis code for varicose veins of lower extremity in pregnancy, third trimester. Enlarged, twisted veins in the legs that develop or worsen during the third trimester (weeks 21 through delivery) of pregnancy. O22.03 sits in the ICD-10-CM chapter for pregnancy, childbirth and the puerperium (o00-o9a), within the section covering other maternal disorders predominantly related to pregnancy (o20-o29).
O22.03 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.
Third trimester begins at week 21 and continues through delivery; verify gestational age documentation.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O22.03 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Third trimester begins at week 21 and continues through delivery; verify gestational age documentation
- •This is the most common time for varicose veins to develop or become symptomatic due to increased blood volume and pressure