O90.3 vs O99.4
O90.3 (Peripartum cardiomyopathy) compared with O99.4 (Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. O90.3 carries an Excludes1 note covering O99.4: “pre-existing heart disease complicating pregnancy and the puerperium (O99.4-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. O99.4 carries an Excludes1 note covering O90.3: “peripartum cardiomyopathy (O90.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| O90.3Peripartum cardiomyopathy | O99.4Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) |
| Definition | Peripartum cardiomyopathy is a billable ICD-10-CM diagnosis code (O90.3). | Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium is a non-billable ICD-10-CM category code (O99.4). |
| Includes | Conditions in I42.- arising during pregnancy and the puerperium | conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care Conditions in I00-I99 |
| Use additional code | — | code to identify specific condition |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources