O35.FXX3 – Maternal care for other (suspected) fetal abnormality and damage, fetal musculoskeletal anomalies of trunk, fetus 3

ICD-10-CM 2027 diagnosis code · Maternal care related to the fetus and amniotic cavity and possible delivery problems

Billable code

ICD-10-CM code O35.FXX3

Code: O35.FXX3 (claims format: O35FXX3)
Description: Maternal care for other (suspected) fetal abnormality and damage, fetal musculoskeletal anomalies of trunk, fetus 3
Short description: Mat care oth fetl abnlt & damag, fetl ms anomal trunk, fts3
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems
Parent codes: O35 › O35.F

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care.

Character	Meaning
`0`	not applicable or unspecified
`1`	fetus 1
`2`	fetus 2
`3`	fetus 3
`4`	fetus 4
`5`	fetus 5
`9`	other fetus

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

O35 – Maternal care for known or suspected fetal abnormality and damage

Includes:

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

Excludes1 (not coded here):

encounter for suspected maternal and fetal conditions ruled out (Z03.7-)

Code also:

any associated maternal condition

7th character note:

One of the following 7th characters is to be assigned to each code under category O35. 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 O35 that has a 7th character of 1 through 9.

O35.F – Maternal care for other (suspected) fetal abnormality and damage, fetal musculoskeletal anomalies of trunk

Excludes2 (not included here):

maternal care for other (suspected) fetal abnormality and damage, fetal lower extremities anomalies (O35.H)
maternal care for other (suspected) fetal abnormality and damage, fetal upper extremities anomalies (O35.G)

Related codes in O35.F

Frequently asked questions

What is ICD-10 code O35.FXX3?

O35.FXX3 is the ICD-10-CM code for maternal care for other (suspected) fetal abnormality and damage, fetal musculoskeletal anomalies of trunk, fetus 3, in the block O30-O48 (Maternal care related to the fetus and amniotic cavity and possible delivery problems).

Is O35.FXX3 a billable code?

Yes. O35.FXX3 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does O35.FXX3 belong to?

It belongs to category O35 – Maternal care for known or suspected fetal abnormality and damage.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.