O99.8 vs O9A.1
O99.8 (Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium) compared with O9A.1 (Malignant neoplasm complicating pregnancy, childbirth and the puerperium), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. O99.8 carries an Excludes2 note covering O9A.1: “malignant neoplasm complicating pregnancy, childbirth and the puerperium (O9A.1-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| O99.8Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium | O9A.1Malignant neoplasm complicating pregnancy, childbirth and the puerperium | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) |
| Definition | Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium is a non-billable ICD-10-CM category code (O99.8). | Malignant neoplasm complicating pregnancy, childbirth and the puerperium is a non-billable ICD-10-CM category code (O9A.1). |
| Includes | conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care Conditions in D00-D48, H00-H95, M00-N99, and Q00-Q99 | Conditions in C00-C96 |
| Use additional code | code to identify condition code to identify specific condition | code to identify neoplasm |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources