O36.8391
Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, fetus 1
- Release
- FY 2027
- Effective
Hierarchy
Where O36.8391 sits in the official hierarchy. Each level is the code it is classified under.
- O36 Maternal care for other fetal problems
- O36.8 Maternal care for other specified fetal problems
- O36.83 Maternal care for abnormalities of the fetal heart rate or rhythm
- O36.839 Parent Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester
- O36.8391 This code Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, fetus 1
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Includes
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 — Maternal care for other fetal problems
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.
Inherited from O36 — Maternal care for other fetal problems
7th Character
0 - not applicable or unspecified
Inherited from O36 — Maternal care for other fetal problems
Version History
How O36.8391 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentMaternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, fetus 1
-
FY 2026 Effective
UnchangedMaternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, fetus 1
Related Codes
Other codes under O36.839
- O36.8390 Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, not applicable or unspecified Billable
- O36.8392 Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, fetus 2 Billable
- O36.8393 Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, fetus 3 Billable
- O36.8394 Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, fetus 4 Billable
- O36.8395 Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, fetus 5 Billable
- O36.8399 Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, other fetus Billable
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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