O09.4Supervision of pregnancy with grand multiparity

O09.4 is the ICD-10-CM diagnosis code for supervision of pregnancy with grand multiparity. It belongs to category O09 (supervision of high risk pregnancy), block O09 (supervision of high risk 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 4 subcodes must be used instead.

Within O09 (supervision of high risk pregnancy), O09.4 is specifically for supervision of pregnancy with grand multiparity. Related codes cover pregnancy with history of infertility (O09.0), pregnancy with history of ectopic pregnancy (O09.1), pregnancy with other poor reproductive or obstetric history (O09.2), pregnancy with insufficient antenatal care (O09.3), elderly primigravida and multigravida (O09.5), young primigravida and multigravida (O09.6), due to social problems (O09.7), other high risk pregnancies (O09.8) and 2 more.

To report this condition, pick the subcode that matches the documentation: O09.40 (unspecified trimester), O09.41 (first trimester), O09.42 (second trimester) and O09.43 (third trimester).

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