Is O98 a billable ICD-10-CM code?

No. O98 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does O98 sit in the tabular list?

Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).

O98

O98 — Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

Non-billable headerICD-10-CM

O98 is a non-billable header ICD-10-CM code for maternal infectious and parasitic 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.

herpes gestationis (O26.4-)
infectious carrier state (O99.82-, O99.83-)
obstetrical tetanus (A34)
puerperal infection (O86.-)
puerperal sepsis (O85)
when the reason for maternal care is that the disease 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 (Chapter 1), to identify specific infectious or parasitic disease

Includes

Conditions this code covers.

the listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric care

Other codes that can never be billed with O98

These codes carry an Excludes1 note pointing at O98. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O98 alone.

O98.5Other viral diseases complicating pregnancy, childbirth and the puerperium

Risk adjustment

O98 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead O98

10 child codes. Green means billable.

Questions about O98

Is O98 a billable ICD-10-CM code?: No. O98 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does O98 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).