O99

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

Non-billable headerICD-10-CM

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

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.

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

Use additional code

Add a secondary code to capture the detail described below.

code to identify specific condition

Includes

Conditions this code covers.

conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care

Other codes that can never be billed with O99

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

Z22.330Carrier of Group B streptococcus
Z72.0Tobacco use
Z98.84Bariatric surgery status
O90.3Peripartum cardiomyopathy
O90.81Anemia of the puerperium
R73.0Abnormal glucose

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

9 child codes. Green means billable.