O26.612 ICD-10-CM Code: Liver and biliary tract disorders in pregnancy, second 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)
O26.612
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceLiver and biliary tract disorders in pregnancy, second trimester
Problems with the liver and bile ducts occurring during the second trimester of pregnancy (weeks 13-27), such as cholestasis or hepatitis.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
MappedHCC 211
Varies by metal level
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 O26.612 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for O26.612 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for O26.612 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for O26.612 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for O26.612 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for O26.612 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for O26.612 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 O26.612 an HCC code?
No. O26.612 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- O26.612
- Description
- Liver and biliary tract disorders in pregnancy, second 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
O26.612 is the ICD-10-CM diagnosis code for liver and biliary tract disorders in pregnancy, second trimester. Problems with the liver and bile ducts occurring during the second trimester of pregnancy (weeks 13-27), such as cholestasis or hepatitis. O26.612 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).
O26.612 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.
Document the specific liver condition (cholestasis, hepatitis, etc.) if known; this code represents the trimester-specific manifestation.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O26.612 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Document the specific liver condition (cholestasis, hepatitis, etc.) if known; this code represents the trimester-specific manifestation
- •Pregnancy-related cholestasis is most common in the second and third trimesters; monitor for pruritus and elevated bile acids