2026 ICD-10-CM Diagnosis Code O36Maternal care for other fetal problems
O36 is a non-billable ICD-10-CM category code for maternal care for other fetal problems, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O36.0110, O36.0111, O36.0112, and O36.0113.
Code Identity
Code Classification
Specific Coding for Maternal care for other fetal problemsOverview
Non-specific codes like O36 require more characters. Use one of these billable codes instead:
O36.0 for Maternal care for rhesus isoimmunization
O36.01 for Maternal care for anti-D [Rh] antibodies
O36.09 for Maternal care for other rhesus isoimmunization
O36.1 for Maternal care for other isoimmunization
O36.11 for Maternal care for Anti-A sensitization
O36.19 for Maternal care for other isoimmunization
O36.2 for Maternal care for hydrops fetalis
O36.20 for Maternal care for hydrops fetalis, unspecified trimester
O36.21 for Maternal care for hydrops fetalis, first trimester
O36.22 for Maternal care for hydrops fetalis, second trimester
O36.23 for Maternal care for hydrops fetalis, third trimester
O36.4 for Maternal care for intrauterine death
O36.5 for Maternal care for known or suspected poor fetal growth
O36.51 for Maternal care for known or suspected placental insufficiency
O36.59 for Maternal care for other known or suspected poor fetal growth
O36.6 for Maternal care for excessive fetal growth
O36.60 for Maternal care for excessive fetal growth, unspecified trimester
O36.61 for Maternal care for excessive fetal growth, first trimester
O36.62 for Maternal care for excessive fetal growth, second trimester
O36.63 for Maternal care for excessive fetal growth, third trimester
O36.7 for Maternal care for viable fetus in abdominal pregnancy
O36.70 for Maternal care for viable fetus in abdominal pregnancy, unspecified trimester
O36.71 for Maternal care for viable fetus in abdominal pregnancy, first trimester
O36.72 for Maternal care for viable fetus in abdominal pregnancy, second trimester
O36.73 for Maternal care for viable fetus in abdominal pregnancy, third trimester
O36.8 for Maternal care for other specified fetal problems
O36.80 for Pregnancy with inconclusive fetal viability
O36.81 for Decreased fetal movements
O36.82 for Fetal anemia and thrombocytopenia
O36.83 for Maternal care for abnormalities of the fetal heart rate or rhythm
O36.89 for Maternal care for other specified fetal problems
O36.9 for Maternal care for fetal problem, unspecified
O36.90 for Maternal care for fetal problem, unspecified, unspecified trimester
O36.91 for Maternal care for fetal problem, unspecified, first trimester
O36.92 for Maternal care for fetal problem, unspecified, second trimester
O36.93 for Maternal care for fetal problem, unspecified, third trimester
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Includes
- the listed conditions in the fetus as a reason for hospitalization or other obstetric care of the mother, or for termination of pregnancy
Type 1 Excludes
- encounter for suspected maternal and fetal conditions ruled out Z03.7
- placental transfusion syndromes O43.0
Type 2 Excludes
- labor and delivery complicated by fetal stress O77
7th Character Note
- 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
7th Character
- 0 - not applicable or unspecified
- 1 - fetus 1
- 2 - fetus 2
- 3 - fetus 3
- 4 - fetus 4
- 5 - fetus 5
- 9 - other fetus
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
Indicates that a seventh character is to be assigned to codes in a subcategory.
Patient EducationClinical
Health Problems in Pregnancy
A health problem in pregnancy is any disease or condition that could affect your health or the health of your fetus. Some health problems may make it more likely that you will have a high-risk pregnancy. A high-risk pregnancy is one in which you, your fetus, or both are at higher risk for health problems than in a typical pregnancy.
The full article covers:
- What are health problems in pregnancy?
- What raises my risk for health problems during pregnancy?
- Can chronic health conditions cause problems in pregnancy?
- Can health problems in pregnancy be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Code HistoryHistory
Questions About O36Overview
Is O36 (Maternal care for other fetal problems) a billable code?
No. This is a category header that groups the codes for maternal care for other fetal problems, and headers cannot be submitted on claims. Claims for maternal care for other fetal problems need a more specific code from this category, such as O36.0110, O36.0111, and O36.0112.
