O24.03

Quick facts

Code

O24.03

Type

Billable code

ICD-10-CM chapter

Chapter 15 — Pregnancy, childbirth and the puerperium

Category

O24 — Diabetes mellitus in pregnancy, childbirth, and the puerperium

Specificity

5 characters

ICD-10-CM O24.03 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of pre-existing type 1 diabetes mellitus, in the puerperium. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.