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

O24.9 is the ICD-10-CM diagnosis code for unspecified diabetes mellitus in pregnancy, childbirth and the puerperium. It belongs to category O24 (diabetes mellitus in pregnancy, childbirth, and the puerperium), block O20-O29 (other maternal disorders predominantly related to pregnancy) and chapter 15 (pregnancy, childbirth and the puerperium). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within O24, choose O24.9 (Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium) only when documentation doesn't support a more specific option: pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium (O24.0), pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium (O24.1), unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium (O24.3), gestational diabetes mellitus (O24.4) and other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium (O24.8).

To report this condition, pick the subcode that matches the documentation: O24.91 (pregnancy), O24.92 (childbirth) and O24.93 (puerperium).

Use an additional code (for): from categories E08, E09 and E13 to further identify any manifestation, injectable non-insulin antidiabetic drugs (Z79.85) and long-term (current) use of insulin (Z79.4).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.