2027 ICD-10-CM Diagnosis Code O09Supervision of high risk pregnancy

ICD-10-CM Codes›O00-O9A›O09›O09

ICD-10-CM O09
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

O09 is a non-billable ICD-10-CM category code for supervision of high risk pregnancy, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O09.00, O09.01, O09.02, and O09.03.

Code Identity

ICD-10-CM Code
O09
Billable Status
No — Non-Billable Category
Code Describes
Supervision of high risk pregnancy
Short Description
Supervision of high risk pregnancy
Same as the full description in the CMS dataset.
Chapter
O09
Supervision of high risk pregnancy

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO09Supervision of high risk pregnancy
CategoryO09Supervision of high risk pregnancy
This CodeO09Supervision of high risk pregnancy

Specific Coding for Supervision of high risk pregnancyOverview

Non-specific codes like O09 require more characters. Use one of these billable codes instead:

  • O09.0 for Supervision of pregnancy with history of infertility

  • Use O09.00 for Supervision of pregnancy with history of infertility, unspecified trimester

  • Use O09.01 for Supervision of pregnancy with history of infertility, first trimester

  • Use O09.02 for Supervision of pregnancy with history of infertility, second trimester

  • Use O09.03 for Supervision of pregnancy with history of infertility, third trimester

  • O09.1 for Supervision of pregnancy with history of ectopic pregnancy

  • Use O09.10 for Supervision of pregnancy with history of ectopic pregnancy, unspecified trimester

  • Use O09.11 for Supervision of pregnancy with history of ectopic pregnancy, first trimester

  • Use O09.12 for Supervision of pregnancy with history of ectopic pregnancy, second trimester

  • Use O09.13 for Supervision of pregnancy with history of ectopic pregnancy, third trimester

  • O09.2 for Supervision of pregnancy with other poor reproductive or obstetric history

  • O09.21 for Supervision of pregnancy with history of pre-term labor

  • O09.29 for Supervision of pregnancy with other poor reproductive or obstetric history

  • O09.3 for Supervision of pregnancy with insufficient antenatal care

  • Use O09.30 for Supervision of pregnancy with insufficient antenatal care, unspecified trimester

  • Use O09.31 for Supervision of pregnancy with insufficient antenatal care, first trimester

  • Use O09.32 for Supervision of pregnancy with insufficient antenatal care, second trimester

  • Use O09.33 for Supervision of pregnancy with insufficient antenatal care, third trimester

  • O09.4 for Supervision of pregnancy with grand multiparity

  • Use O09.40 for Supervision of pregnancy with grand multiparity, unspecified trimester

  • Use O09.41 for Supervision of pregnancy with grand multiparity, first trimester

  • Use O09.42 for Supervision of pregnancy with grand multiparity, second trimester

  • Use O09.43 for Supervision of pregnancy with grand multiparity, third trimester

  • O09.5 for Supervision of elderly primigravida and multigravida

  • O09.51 for Supervision of elderly primigravida

  • O09.52 for Supervision of elderly multigravida

  • O09.6 for Supervision of young primigravida and multigravida

  • O09.61 for Supervision of young primigravida

  • O09.62 for Supervision of young multigravida

  • O09.7 for Supervision of high risk pregnancy due to social problems

  • Use O09.70 for Supervision of high risk pregnancy due to social problems, unspecified trimester

  • Use O09.71 for Supervision of high risk pregnancy due to social problems, first trimester

  • Use O09.72 for Supervision of high risk pregnancy due to social problems, second trimester

  • Use O09.73 for Supervision of high risk pregnancy due to social problems, third trimester

  • O09.8 for Supervision of other high risk pregnancies

  • O09.81 for Supervision of pregnancy resulting from assisted reproductive technology

  • O09.82 for Supervision of pregnancy with history of in utero procedure during previous pregnancy

  • O09.89 for Supervision of other high risk pregnancies

  • O09.9 for Supervision of high risk pregnancy, unspecified

  • Use O09.90 for Supervision of high risk pregnancy, unspecified, unspecified trimester

  • Use O09.91 for Supervision of high risk pregnancy, unspecified, first trimester

  • Use O09.92 for Supervision of high risk pregnancy, unspecified, second trimester

  • Use O09.93 for Supervision of high risk pregnancy, unspecified, third trimester

  • O09.A for Supervision of pregnancy with history of molar pregnancy

  • Use O09.A0 for Supervision of pregnancy with history of molar pregnancy, unspecified trimester

  • Use O09.A1 for Supervision of pregnancy with history of molar pregnancy, first trimester

  • Use O09.A2 for Supervision of pregnancy with history of molar pregnancy, second trimester

  • Use O09.A3 for Supervision of pregnancy with history of molar pregnancy, third trimester

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to O09: its own notes plus those printed at Chapter 15. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • supervision of normal pregnancy (Z34.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Notes

General instructions on how these codes are used.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • 1st trimester- less than 14 weeks 0 days
  • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • 3rd trimester- 28 weeks 0 days until delivery

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name O09, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming O09: they are not reported together with it, unless the two conditions are unrelated.

  • Z34 Encounter for supervision of normal pregnancy
    encounter for supervision of high risk pregnancy (O09.-)

Patient EducationClinical

Health Problems in Pregnancy

A health problem in pregnancy is any disease or condition that could affect your health or the health of your fetus. Some health problems may make it more likely that you will have a high-risk pregnancy. A high-risk pregnancy is one in which you, your fetus, or both are at higher risk for health problems than in a typical pregnancy.

The full article covers:

  • What are health problems in pregnancy?
  • What raises my risk for health problems during pregnancy?
  • Can chronic health conditions cause problems in pregnancy?
  • Can health problems in pregnancy be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About O09Overview

What is the ICD-10 code for supervision of high risk pregnancy?

O09 is the ICD-10-CM category for supervision of high risk pregnancy, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is O09 (Supervision of high risk pregnancy) a billable code?

No. This is a category header that groups the codes for supervision of high risk pregnancy, and headers cannot be submitted on claims. Claims for supervision of high risk pregnancy need a more specific code from this category, such as O09.00, O09.01, and O09.02.