Is O98.311 a billable ICD-10-CM code?

Yes. O98.311 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does O98.311 sit in the tabular list?

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

O98.311

O98.311 — Other infections with a predominantly sexual mode of transmission complicating pregnancy, first trimester

Billable / specific codeICD-10-CM

O98.311 is a billable, specific ICD-10-CM code for other infections with a predominantly sexual mode of transmission complicating pregnancy, first trimester. It is valid for submission on a claim.

Excludes2 inherited from the categories above O98.311

Also inherited, and the opposite of Excludes1: these conditions are not part of O98.311, but a patient can have both, so you may code both.

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

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)

Risk adjustment

O98.311 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 history

O98.311 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share O98.31. If O98.311 is not quite right, the correct code is usually one of these.

Questions about O98.311

Is O98.311 a billable ICD-10-CM code?: Yes. O98.311 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does O98.311 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).