Skip to main content

O36.63 ICD-10-CM Code: Maternal care for excessive fetal growth, third trimester

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Code Overview

Maternal care for excessive fetal growth, third trimester is a non-billable ICD-10-CM category code (O36.63). A more specific billable subcode must be selected for claims submission.

Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for O36.63 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 inherited from O36

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.

Frequently Compared Codes

The official Excludes notes on O36.63 name these codes. Each comparison page covers when the two can — or must not — be reported together.

Change history

  • FY2016 — 2015-10-01
    In the code set at ICD-10-CM adoption
    Maternal care for excessive fetal growth, third trimester

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Verify Before Coding

  • Not billable as written — a more specific code is required: O36.63X0, O36.63X1, O36.63X2, O36.63X3, O36.63X4.
  • Requires a 7th character. "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." Options: O36.63X0, O36.63X1, O36.63X2, O36.63X3, O36.63X4, O36.63X5

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

Relationships & Classification

Other codes that name O36.63 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 1 Excludes1 note: Z03.7 (via O36.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Contextual Map

Every relationship of O36.63 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • O00-O9A — Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A) (O00-O9A) [Hierarchy]
  • O30-O48 — Maternal care related to the fetus and amniotic cavity and possible delivery problems [Hierarchy]

Referenced by Excludes1 notes

  • Z03.7 — Encounter for suspected maternal and fetal conditions ruled out [Excludes1](via O36.-): “known or suspected fetal anomalies affecting management of mother, not ruled out (O26.-, O35.-, O36.-, O40.-, O41.-)” · check together

Nearest codes (40)

  • O36 — Maternal care for other fetal problems [Sibling]
  • O36.60X3 — Maternal care for excessive fetal growth, unspecified trimester, fetus 3 [Sibling]
  • O36.60X4 — Maternal care for excessive fetal growth, unspecified trimester, fetus 4 [Sibling]
  • O36.60X5 — Maternal care for excessive fetal growth, unspecified trimester, fetus 5 [Sibling]
  • O36.60X9 — Maternal care for excessive fetal growth, unspecified trimester, other fetus [Sibling]
  • O36.61 — Maternal care for excessive fetal growth, first trimester [Sibling]
  • O36.61X0 — Maternal care for excessive fetal growth, first trimester, not applicable or unspecified [Sibling]
  • O36.61X1 — Maternal care for excessive fetal growth, first trimester, fetus 1 [Sibling]
  • and 32 more

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]

Frequently Asked Questions (FAQ) & Clinical Guidance

Can O36.63 be billed directly?

No. O36.63 (Maternal care for excessive fetal growth, third trimester) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Does O36.63 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 O36.63 in its code family, with their registry titles.

  • O36.62X2 — Maternal care for excessive fetal growth, second trimester, fetus 2
  • O36.62X3 — Maternal care for excessive fetal growth, second trimester, fetus 3
  • O36.62X4 — Maternal care for excessive fetal growth, second trimester, fetus 4
  • O36.62X5 — Maternal care for excessive fetal growth, second trimester, fetus 5
  • O36.62X9 — Maternal care for excessive fetal growth, second trimester, other fetus
  • O36.63X0 — Maternal care for excessive fetal growth, third trimester, not applicable or unspecified
  • O36.63X1 — Maternal care for excessive fetal growth, third trimester, fetus 1
  • O36.63X2 — Maternal care for excessive fetal growth, third trimester, fetus 2
  • O36.63X3 — Maternal care for excessive fetal growth, third trimester, fetus 3
  • O36.63X4 — Maternal care for excessive fetal growth, third trimester, fetus 4

View all codes in the O36 family