Is ICD-10-CM code O24 billable?

No, O24 (Diabetes mellitus in pregnancy, childbirth, and the puerperium) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code O24 belong to?

O24 belongs to Chapter 15 of the ICD-10-CM tabular list: O00–O9A (Pregnancy, Childbirth and the Puerperium).

O24Non-billable

Diabetes mellitus in pregnancy, childbirth, and the puerperium

Pregnancy, Childbirth and the Puerperium·Other maternal disorders predominantly related to pregnancy (O20-O29)·category·FY 2026

Use a more specific code (0 billable, 6 non-billable)

O24.0Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperiumhas subcodes O24.1Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperiumhas subcodes O24.3Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperiumhas subcodes O24.4Gestational diabetes mellitushas subcodes O24.8Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperiumhas subcodes O24.9Unspecified diabetes mellitus in pregnancy, childbirth and the puerperiumhas subcodes

CH15 Parent Instructions

Excludes1(Not coded here. Use a different code.)

supervision of normal pregnancy (Z34.-)

Excludes2(Not included here. Code separately if applicable.)

mental and behavioral disorders associated with the puerperium (F53.-)
obstetrical tetanus (A34)
postpartum necrosis of pituitary gland (E23.0)
puerperal osteomalacia (M83.0)

Use Additional Code

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

O20-O29 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)

Clinical Hierarchy

BillableHas subcodes

CH15Pregnancy, childbirth and the puerperium (O00-O9A)

O20-O29Other maternal disorders predominantly related to pregnancy (O20-O29)

O24Diabetes mellitus in pregnancy, childbirth, and the puerperiumNot billable

O24.0Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperiumSubcodes

O24.1Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperiumSubcodes

O24.3Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperiumSubcodes

O24.4Gestational diabetes mellitusSubcodes

O24.8Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperiumSubcodes

O24.9Unspecified diabetes mellitus in pregnancy, childbirth and the puerperiumSubcodes

MS-DRG Classification

2026

No direct MS-DRG triggers identified.