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ICD-10-CM 2027 diagnosis code

O09.3Supervision of pregnancy with insufficient antenatal care

Not billable — use a more specific code

O09.3 is a header code, so it can't be reported by itself. Choose one of the 4 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 O09.3

O09.3 is the ICD-10-CM diagnosis code for supervision of pregnancy with insufficient antenatal care. 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), O09.3 is specifically for supervision of pregnancy with insufficient antenatal care. 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 grand multiparity (O09.4), 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: O09.30 (unspecified trimester), O09.31 (first trimester), O09.32 (second trimester) and O09.33 (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.

Specific codes under O09.3

Coding notes

Applicable toConditions and synonyms classified to this code
  • Supervision of concealed pregnancy
  • Supervision of hidden pregnancy

Notes that apply from higher levels

Instructions written at a parent level also apply to O09.3.

Broader instructions also apply from Chapter 15: Pregnancy, childbirth and the puerperium.

Alphabetic index entries

7 entries

Terms in the official ICD-10-CM index that lead to O09.3.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about O09.3

Is O09.3 billable?

No. O09.3 is a header code. Report one of its more specific subcodes instead.