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ICD-10-CM · FY 2026 APRIL UPDATE

O36.59

Maternal care for other known or suspected poor fetal growth

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
O36.591Maternal care for other known or suspected poor fetal growth, first trimesterCategory
O36.5910Maternal care for other known or suspected poor fetal growth, first trimester, not applicable or unspecifiedBillable
O36.5911Maternal care for other known or suspected poor fetal growth, first trimester, fetus 1Billable
O36.5912Maternal care for other known or suspected poor fetal growth, first trimester, fetus 2Billable
O36.5913Maternal care for other known or suspected poor fetal growth, first trimester, fetus 3Billable
O36.5914Maternal care for other known or suspected poor fetal growth, first trimester, fetus 4Billable
O36.5915Maternal care for other known or suspected poor fetal growth, first trimester, fetus 5Billable
O36.5919Maternal care for other known or suspected poor fetal growth, first trimester, other fetusBillable
O36.592Maternal care for other known or suspected poor fetal growth, second trimesterCategory
O36.5920Maternal care for other known or suspected poor fetal growth, second trimester, not applicable or unspecifiedBillable
O36.5921Maternal care for other known or suspected poor fetal growth, second trimester, fetus 1Billable
O36.5922Maternal care for other known or suspected poor fetal growth, second trimester, fetus 2Billable
O36.5923Maternal care for other known or suspected poor fetal growth, second trimester, fetus 3Billable
O36.5924Maternal care for other known or suspected poor fetal growth, second trimester, fetus 4Billable
O36.5925Maternal care for other known or suspected poor fetal growth, second trimester, fetus 5Billable
O36.5929Maternal care for other known or suspected poor fetal growth, second trimester, other fetusBillable
O36.593Maternal care for other known or suspected poor fetal growth, third trimesterCategory
O36.5930Maternal care for other known or suspected poor fetal growth, third trimester, not applicable or unspecifiedBillable
O36.5931Maternal care for other known or suspected poor fetal growth, third trimester, fetus 1Billable
O36.5932Maternal care for other known or suspected poor fetal growth, third trimester, fetus 2Billable
O36.5933Maternal care for other known or suspected poor fetal growth, third trimester, fetus 3Billable
O36.5934Maternal care for other known or suspected poor fetal growth, third trimester, fetus 4Billable
O36.5935Maternal care for other known or suspected poor fetal growth, third trimester, fetus 5Billable
O36.5939Maternal care for other known or suspected poor fetal growth, third trimester, other fetusBillable
O36.599Maternal care for other known or suspected poor fetal growth, unspecified trimesterCategory
O36.5990Maternal care for other known or suspected poor fetal growth, unspecified trimester, not applicable or unspecifiedBillable
O36.5991Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 1Billable
O36.5992Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 2Billable
O36.5993Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 3Billable
O36.5994Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 4Billable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.