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O34.593 ICD-10-CM Code: Maternal care for other abnormalities of gravid uterus, third trimester

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FY 2026 Apr update / Pregnancy, childbirth and the puerperium (O00-O9A) / Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)

O34.593

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Maternal care for other abnormalities of gravid uterus, third trimester

Pregnant patient receiving care for other structural problems or abnormalities of the uterus during the third trimester.

CMS-HCC V28

0

0

RAF 0

CMS-HCC V24

0

0

RAF 0

ACA/HHS

0

0

RAF 0

ESRD/PACE

0

0

RAF 0

RXHCC

0

0

RAF 0

Code Trumping

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Code Book Path

Official
O34.5Maternal care for other abnormalities of gravid uterus
O34.59Maternal care for other abnormalities of gravid uterus
O34.593Maternal care for other abnormalities of gravid uterus, third trimester

Inclusion Terms

Official

ICD-10-CM does not list inclusion terms for O34.593 in this effective period.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for O34.593 in this effective period.

Related Child Codes

Official
O34.591Maternal care for other abnormalities of gravid uterus, first trimester
O34.592Maternal care for other abnormalities of gravid uterus, second trimester
O34.599Maternal care for other abnormalities of gravid uterus, unspecified trimester

Includes

Official

ICD-10-CM does not list Includes notes for O34.593 in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for O34.593 in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for O34.593 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for O34.593 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for O34.593 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance
This code covers various uterine abnormalities in the final trimester; specify the abnormality in clinical documentation
Distinguish from earlier trimester codes (O34.591, O34.592) based on documented timing

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 O34.593 an HCC code?

No. O34.593 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.

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

O34.593 is the ICD-10-CM diagnosis code for maternal care for other abnormalities of gravid uterus, third trimester. Pregnant patient receiving care for other structural problems or abnormalities of the uterus during the third trimester. O34.593 sits in the ICD-10-CM chapter for pregnancy, childbirth and the puerperium (o00-o9a), within the section covering maternal care related to the fetus and amniotic cavity and possible delivery problems (o30-o48).

O34.593 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.

This code covers various uterine abnormalities in the final trimester; specify the abnormality in clinical documentation.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O34.593 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • This code covers various uterine abnormalities in the final trimester; specify the abnormality in clinical documentation
  • Distinguish from earlier trimester codes (O34.591, O34.592) based on documented timing

Child Codes

Code Hierarchy

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