ICD-10-CM 2027 diagnosis code
O09Supervision of high risk pregnancy
Not billable — use a more specific code
O09 is a header code, so it can't be reported by itself. Choose one of the 11 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About O09
O09 is the ICD-10-CM diagnosis code for supervision of high risk pregnancy. It belongs to 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 11 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: O09.0 (infertility), O09.1 (pregnancy), O09.2 (history), O09.3 (care), O09.4 (multiparity), O09.5 (multigravida), O09.6 (multigravida), O09.7 (due to social problems) and 3 more.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under O09
- O09.0Supervision of pregnancy with history of infertility
- O09.00Supervision of pregnancy with history of infertility, unspecified trimesterBillable
- O09.01Supervision of pregnancy with history of infertility, first trimesterBillable
- O09.02Supervision of pregnancy with history of infertility, second trimesterBillable
- O09.03Supervision of pregnancy with history of infertility, third trimesterBillable
- O09.1Supervision of pregnancy with history of ectopic pregnancy
- O09.10Supervision of pregnancy with history of ectopic pregnancy, unspecified trimesterBillable
- O09.11Supervision of pregnancy with history of ectopic pregnancy, first trimesterBillable
- O09.12Supervision of pregnancy with history of ectopic pregnancy, second trimesterBillable
- O09.13Supervision of pregnancy with history of ectopic pregnancy, third trimesterBillable
- O09.2Supervision of pregnancy with other poor reproductive or obstetric history
- O09.21Supervision of pregnancy with history of pre-term labor
- O09.211Supervision of pregnancy with history of pre-term labor, first trimesterBillable
- O09.212Supervision of pregnancy with history of pre-term labor, second trimesterBillable
- O09.213Supervision of pregnancy with history of pre-term labor, third trimesterBillable
- O09.219Supervision of pregnancy with history of pre-term labor, unspecified trimesterBillable
- O09.29Supervision of pregnancy with other poor reproductive or obstetric history
- O09.291Supervision of pregnancy with other poor reproductive or obstetric history, first trimesterBillable
- O09.292Supervision of pregnancy with other poor reproductive or obstetric history, second trimesterBillable
- O09.293Supervision of pregnancy with other poor reproductive or obstetric history, third trimesterBillable
- O09.299Supervision of pregnancy with other poor reproductive or obstetric history, unspecified trimesterBillable
- O09.21Supervision of pregnancy with history of pre-term labor
- O09.3Supervision of pregnancy with insufficient antenatal care
- O09.30Supervision of pregnancy with insufficient antenatal care, unspecified trimesterBillable
- O09.31Supervision of pregnancy with insufficient antenatal care, first trimesterBillable
- O09.32Supervision of pregnancy with insufficient antenatal care, second trimesterBillable
- O09.33Supervision of pregnancy with insufficient antenatal care, third trimesterBillable
- O09.4Supervision of pregnancy with grand multiparity
- O09.40Supervision of pregnancy with grand multiparity, unspecified trimesterBillable
- O09.41Supervision of pregnancy with grand multiparity, first trimesterBillable
- O09.42Supervision of pregnancy with grand multiparity, second trimesterBillable
- O09.43Supervision of pregnancy with grand multiparity, third trimesterBillable
- O09.5Supervision of elderly primigravida and multigravida
- O09.6Supervision of young primigravida and multigravida
- O09.7Supervision of high risk pregnancy due to social problems
- O09.70Supervision of high risk pregnancy due to social problems, unspecified trimesterBillable
- O09.71Supervision of high risk pregnancy due to social problems, first trimesterBillable
- O09.72Supervision of high risk pregnancy due to social problems, second trimesterBillable
- O09.73Supervision of high risk pregnancy due to social problems, third trimesterBillable
- O09.8Supervision of other high risk pregnancies
- O09.81Supervision of pregnancy resulting from assisted reproductive technology
- O09.811Supervision of pregnancy resulting from assisted reproductive technology, first trimesterBillable
- O09.812Supervision of pregnancy resulting from assisted reproductive technology, second trimesterBillable
- O09.813Supervision of pregnancy resulting from assisted reproductive technology, third trimesterBillable
- O09.819Supervision of pregnancy resulting from assisted reproductive technology, unspecified trimesterBillable
- O09.82Supervision of pregnancy with history of in utero procedure during previous pregnancy
- O09.821Supervision of pregnancy with history of in utero procedure during previous pregnancy, first trimesterBillable
- O09.822Supervision of pregnancy with history of in utero procedure during previous pregnancy, second trimesterBillable
- O09.823Supervision of pregnancy with history of in utero procedure during previous pregnancy, third trimesterBillable
- O09.829Supervision of pregnancy with history of in utero procedure during previous pregnancy, unspecified trimesterBillable
- O09.89Supervision of other high risk pregnancies
- O09.891Supervision of other high risk pregnancies, first trimesterBillable
- O09.892Supervision of other high risk pregnancies, second trimesterBillable
- O09.893Supervision of other high risk pregnancies, third trimesterBillable
- O09.899Supervision of other high risk pregnancies, unspecified trimesterBillable
- O09.81Supervision of pregnancy resulting from assisted reproductive technology
- O09.9Supervision of high risk pregnancy, unspecified
- O09.90Supervision of high risk pregnancy, unspecified, unspecified trimesterBillable
- O09.91Supervision of high risk pregnancy, unspecified, first trimesterBillable
- O09.92Supervision of high risk pregnancy, unspecified, second trimesterBillable
- O09.93Supervision of high risk pregnancy, unspecified, third trimesterBillable
- O09.ASupervision of pregnancy with history of molar pregnancy
- O09.A0Supervision of pregnancy with history of molar pregnancy, unspecified trimesterBillable
- O09.A1Supervision of pregnancy with history of molar pregnancy, first trimesterBillable
- O09.A2Supervision of pregnancy with history of molar pregnancy, second trimesterBillable
- O09.A3Supervision of pregnancy with history of molar pregnancy, third trimesterBillable
Notes that apply from higher levels
Instructions written at a parent level also apply to O09.
Broader instructions also apply from Chapter 15: Pregnancy, childbirth and the puerperium.
Codes whose notes reference O09
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about O09
Is O09 billable?
- No. O09 is a header code. Report one of its more specific subcodes instead.