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).

O24Not billable, use a more specific code below

Diabetes mellitus in pregnancy, childbirth, and the puerperium

In Other maternal disorders predominantly related to pregnancy (O20-O29), chapter 15: Pregnancy, Childbirth and the Puerperium

42 billable codes under O24: 4 are an MCC, 25 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.

Instructional notes

Also applies, from Other maternal disorders predominantly related to pregnancy (O20-O29)

These notes sit on O20-O29 and apply to every code under it, including O24.

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)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Section I.C.15.g Diabetes mellitus in pregnancy (page 66), covers O24
For a pregnant patient with diabetes, sequence a code from category O24 first, followed by the appropriate diabetes code(s) from E08-E13.

All codes under O24

O24 can't be used on a claim. Pick a billable code below; grey headings group them.

O24 MS-DRGs

As the principal diagnosis, the billable codes under O24 group to these 8 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 817 Other Antepartum Diagnoses with O.R. Procedures with MCC (24 of 42 codes)
DRG 818 Other Antepartum Diagnoses with O.R. Procedures with CC (24 of 42 codes)
DRG 819 Other Antepartum Diagnoses with O.R. Procedures without CC/MCC (24 of 42 codes)
DRG 831 Other Antepartum Diagnoses without O.R. Procedures with MCC (24 of 42 codes)
DRG 832 Other Antepartum Diagnoses without O.R. Procedures with CC (24 of 42 codes)
DRG 833 Other Antepartum Diagnoses without O.R. Procedures without CC/MCC (24 of 42 codes)
DRG 769 Postpartum and Post Abortion Diagnoses with O.R. Procedures (9 of 42 codes)
DRG 776 Postpartum and Post Abortion Diagnoses without O.R. Procedures (9 of 42 codes)

Other codes that refer to O24

Notes on these codes point to O24.

O99.2 Excludes2: diabetes mellitus (O24.-)
R73 Excludes1: diabetes mellitus in pregnancy, childbirth and the puerperium (O24.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Childbirth Problems

Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include:

Diabetes and Pregnancy

If you have diabetes, your blood glucose, or blood sugar, levels are too high. Glucose comes from the foods you eat. A hormone called insulin helps the glucose get into your cells to give them energy. With type 1 diabetes, your body does not make insulin. With type 2 diabetes, your body does not make or use insulin well. Without enough insulin, the glucose stays in your blood.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.