2027 ICD-10-CM Diagnosis Code O99.814Abnormal glucose complicating childbirth
ICD-10-CM Codes›O00-O9A›O94-O9A›O99
- Billable — Valid for Submission
- Not Chronic
O99.814 is a billable ICD-10-CM diagnosis code for abnormal glucose complicating childbirth. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 998. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). Coders also document this condition as glucose tolerance test during pregnancy, childbirth and puerperium outside reference range. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complications specified during childbirth, Diabetes mellitus without complication, and Diabetes or abnormal glucose tolerance complicating pregnancy; childbirth; or the puerperium.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for O99.814.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Glucose tolerance test during pregnancy, childbirth and puerperium outside reference range
- Glucose tolerance test outside reference range
- Pregnancy with abnormal glucose tolerance test
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to O99.814: its own notes plus those printed at O99.81, O99.8, O99, and Chapter 15. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- gestational diabetes (O24.4-)
- 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.
- genitourinary infections in pregnancy (O23.-)
- infection of genitourinary tract following delivery (O86.1-O86.4)
- malignant neoplasm complicating pregnancy, childbirth and the puerperium (O9A.1-)
- maternal care for known or suspected abnormality of maternal pelvic organs (O34.-)
- postpartum acute kidney failure (O90.49)
- traumatic injuries in pregnancy (O9A.2-)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify condition
- code to identify specific condition
- 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.
- 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 O99.814, its category, or a range that includes it.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Childbirth Problems
Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert O99.814 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About O99.814Overview
What is the ICD-10 code for abnormal glucose complicating childbirth?
The ICD-10-CM code for abnormal glucose complicating childbirth is O99.814 (sometimes written as O99814). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is O99.814 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report abnormal glucose complicating childbirth on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does O99.814 group to?
When abnormal glucose complicating childbirth is the principal diagnosis on an inpatient stay, it groups to MS-DRG 998 (principal Diagnosis Invalid as Discharge Diagnosis), which carries a relative weight of 0. Higher weights mean higher Medicare reimbursement.
Who can O99.814 be reported for?
The Medicare Code Editor checks abnormal glucose complicating childbirth against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.
Can O99.814 be reported with a code from O24.4?
Not as a rule. The Excludes1 note at O99.81, which applies to O99.814, lists "gestational diabetes (O24.4-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
