O99.4

O99.4: Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium

Non-billable headerICD-10-CM

O99.4 is a non-billable header ICD-10-CM code for diseases of the circulatory system complicating pregnancy, childbirth and the puerperium. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

peripartum cardiomyopathy (O90.3)

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

hypertensive disorders (O10-O16)
obstetric embolism (O88.-)
venous complications and cerebrovenous sinus thrombosis in labor, childbirth and the puerperium (O87.-)
venous complications and cerebrovenous sinus thrombosis in pregnancy (O22.-)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Conditions in I00-I99

Excludes2 inherited from the categories above O99.4

Not part of this code, but both may be coded when both are present.

Written on O99: Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)

Other codes that can never be billed with O99.4

Their own Excludes1 notes name this code, so the conflict is not listed above.

O90.3Peripartum cardiomyopathy

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead O99.4

3 child codes. Green means billable.