Is O99.815 a billable ICD-10-CM code?

Yes. O99.815 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does O99.815 sit in the tabular list?

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

What cannot be coded together with O99.815?

O99.815 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above O99.815 (O99.81) and apply to it just the same.

O99.815

O99.815 — Abnormal glucose complicating the puerperium

Billable / specific codeICD-10-CM

O99.815 is a billable, specific ICD-10-CM code for abnormal glucose complicating the puerperium. It is valid for submission on a claim.

Excludes1 inherited from the categories above O99.815

These are not written on O99.815, but they bind it: a note on a category applies to every code beneath it. Billing O99.815 with anything listed here is a denial.

Written on O99.81 — Abnormal glucose complicating pregnancy, childbirth and the puerperium

gestational diabetes (O24.4-)

Excludes2 inherited from the categories above O99.815

Also inherited, and the opposite of Excludes1: these conditions are not part of O99.815, but a patient can have both, so you may code both.

Written on O99.8 — Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium

genitourinary infections in pregnancy (O23.-)
infection of genitourinary tract following delivery (O86.1-O86.4)
malignant neoplasm complicating pregnancy, childbirth and the puerperium (O9A.1-)
maternal care for known or suspected abnormality of maternal pelvic organs (O34.-)
postpartum acute kidney failure (O90.49)
traumatic injuries in pregnancy (O9A.2-)

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)

Risk adjustment

O99.815 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.

How O99.815 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to O99.815.

Puerperal, puerperium›abnormal glucose(tolerance test)

Code history

O99.815 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 O99.81. If O99.815 is not quite right, the correct code is usually one of these.

Questions about O99.815

Is O99.815 a billable ICD-10-CM code?: Yes. O99.815 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does O99.815 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).
What cannot be coded together with O99.815?: O99.815 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above O99.815 (O99.81) and apply to it just the same.