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ICD-10/O36.4XX3

O36.4XX3 ICD-10-CM Code: Maternal care for intrauterine death, fetus 3

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

  • MS-DRG 817 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH MCC (MDC 14)
  • MS-DRG 818 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH CC (MDC 14)
  • MS-DRG 819 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITHOUT CC/MCC (MDC 14)
  • MS-DRG 831 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH MCC (MDC 14)
  • MS-DRG 832 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH CC (MDC 14)
  • MS-DRG 833 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITHOUT CC/MCC (MDC 14)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Official Registry Overview & Definition

Maternal care for intrauterine death, fetus 3 is a billable ICD-10-CM diagnosis code (O36.43).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for O36.4XX3 in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • the listed conditions in the fetus as a reason for hospitalization or other obstetric care of the mother, or for termination of pregnancy

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Maternal care for intrauterine fetal death NOS
  • Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
  • Maternal care for late fetal death
  • Maternal care for missed delivery

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Change history

No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.

Verify Before Coding

  • Billable — reportable as written.
  • Age-restricted: the Medicare Code Editor lists this as a maternity (age 9-64) diagnosis; other ages are presumed incorrect.
  • CC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Referenced by Other Codes

Clinical classification (AHRQ CCSR):PRG028 — Other specified complications in pregnancy (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Potential MS-DRG Relationships (FY2026)

CC — Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 7 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 6 MS-DRGs: DRG 817 (MDC 14), DRG 818 (MDC 14), DRG 819 (MDC 14), DRG 831 (MDC 14), DRG 832 (MDC 14), DRG 833 (MDC 14).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Official ICD-10-CM tabular notes on other codes that name O36.4XX3 or its code family.

1 Excludes1 notes: Z03.7 (via O36.-).

Frequently Asked Questions (FAQ) & Clinical Guidance

Does O36.4XX3 require a 7th character?

Yes. One of the following 7th characters is to be assigned to each code under category O36. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O36 that has a 7th character of 1 through 9..

Nearest Codes in This Family

Official ICD-10-CM classifications closest to O36.4XX3 in its code family, with their registry titles.

  • O36.23X9 — Maternal care for hydrops fetalis, third trimester, other fetus
  • O36.4 — Maternal care for intrauterine death
  • O36.4XX0 — Maternal care for intrauterine death, not applicable or unspecified
  • O36.4XX1 — Maternal care for intrauterine death, fetus 1
  • O36.4XX2 — Maternal care for intrauterine death, fetus 2
  • O36.4XX4 — Maternal care for intrauterine death, fetus 4
  • O36.4XX5 — Maternal care for intrauterine death, fetus 5
  • O36.4XX9 — Maternal care for intrauterine death, other fetus
  • O36.5 — Maternal care for known or suspected poor fetal growth
  • O36.51 — Maternal care for known or suspected placental insufficiency

View all codes in the O36 family