Non-Billable / Non-Specific Code
ICD-10-CM O35 is the diagnosis code for Maternal care for known or suspected fetal abnormality and damage. This code falls under the section "Maternal care related to the fetus and amniotic cavity and possible delivery problems" within Chapter 15 — Pregnancy, childbirth and the puerperium (O00-O9A). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as O35. They are mutually exclusive:
Understanding where O35 sits in the ICD-10-CM classification helps ensure proper coding:
No, O35 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
O35 is the ICD-10-CM diagnosis code for "Maternal care for known or suspected fetal abnormality and damage". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
O35 is located in Section O30-O48 — "Maternal care related to the fetus and amniotic cavity and possible delivery problems" within Chapter 15 of the ICD-10-CM Tabular List.
O35 has 18 sub-code(s) that provide more specific detail: O35.0, O35.1, O35.2, O35.3, O35.4 and more.
Use O35 when the patients documented diagnosis matches "Maternal care for known or suspected fetal abnormality and damage" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Maternal care for known or suspected fetal abnormality and damage is O35.
No, O35 is non-billable. Use a more specific sub-code for primary diagnosis billing.
O35 is in Chapter 15 of the ICD-10-CM Tabular List.
Type 1 Excludes for O35 include: encounter for suspected maternal and fetal conditions ruled out (Z03.7-).
Yes, O35 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.