ICD-10-CM Codes
O00-O9A
O30-O48
O35-
2023 ICD-10-CM Diagnosis Code O35

2023 ICD-10-CM Diagnosis Code O35

Maternal care for known or suspected fetal abnormality and damage

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

O35 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
Short description: Maternal care for known or suspected fetal abnlt and damage
The 2023 edition of ICD-10-CM O35 became effective on October 1, 2022.
This is the American ICD-10-CM version of O35 - other international versions of ICD-10 O35 may differ.

Code Also

Code Also Help

A code also note instructs that 2 codes may be required to fully describe a condition but the sequencing of the two codes is discretionary, depending on the severity of the conditions and the reason for the encounter.

any associated maternal condition

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as O35. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

encounter for suspected maternal and fetal conditions ruled out (
ICD-10-CM Diagnosis Code Z03.7
Encounter for suspected maternal and fetal conditions ruled out
Applicable To
- Encounter for suspected maternal and fetal conditions not found
Type 1 Excludes
- known or suspected fetal anomalies affecting management of mother, not ruled out (O26.-, O35.-, O36.-, O40.-, O41.-)
Z03.7-
)

Includes

Includes Help

"Includes" further defines, or give examples of, the content of the code or category.

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

The following code(s) above O35 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to O35:

O00-O9A
2023 ICD-10-CM Range O00-O9A
Pregnancy, childbirth and the puerperium
Note
- CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
- Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
- Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- 1st trimester- less than 14 weeks 0 days
- 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- 3rd trimester- 28 weeks 0 days until delivery
Type 1 Excludes
- supervision of normal pregnancy (Z34.-)
Type 2 Excludes
- mental and behavioral disorders associated with the puerperium (F53.-)
- obstetrical tetanus (A34)
- postpartum necrosis of pituitary gland (E23.0)
- puerperal osteomalacia (M83.0)
Use Additional
- code from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Pregnancy, childbirth and the puerperium

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to O35:

Type 1 Excludes: Z03.7

ICD-10-CM Diagnosis Code Z03.7
Encounter for suspected maternal and fetal conditions ruled out
Applicable To
- Encounter for suspected maternal and fetal conditions not found
Type 1 Excludes
- known or suspected fetal anomalies affecting management of mother, not ruled out (O26.-, O35.-, O36.-, O40.-, O41.-)

ICD-10-CM Codes Adjacent To O35

O34.8 Maternal care for other abnormalities of pelvic organs

O34.80 …… unspecified trimester

O34.81 …… first trimester

O34.82 …… second trimester

O34.83 …… third trimester

O34.9 Maternal care for abnormality of pelvic organ, unspecified

O34.90 …… unspecified trimester

O34.91 …… first trimester

O34.92 …… second trimester

O34.93 …… third trimester

O35 Maternal care for known or suspected fetal abnormality and damage

O35.0 Maternal care for (suspected) central nervous system malformation in fetus

O35.00 Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified

O35.00X0 …… not applicable or unspecified

O35.00X1 …… fetus 1

O35.00X2 …… fetus 2

O35.00X3 …… fetus 3

O35.00X4 …… fetus 4

O35.00X5 …… fetus 5

O35.00X9 …… other fetus

O35.01 Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code O35

Maternal care for known or suspected fetal abnormality and damage

Encounter for suspected maternal and fetal conditions ruled out

Pregnancy, childbirth and the puerperium

Encounter for suspected maternal and fetal conditions ruled out