2026 ICD-10-CM Diagnosis Code Z86.32Personal history of gestational diabetes

ICD-10-CM Codes›Z00–Z99›Z77-Z99›Z86

ICD-10-CM Z86.32
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z86.32 is a billable ICD-10-CM diagnosis code for personal history of gestational diabetes. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. Coders also document this condition as H/O: diabetes mellitus. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Personal history of other disease.

Code Identity

ICD-10-CM Code
Z86.32
Billable Status
Yes — Valid for Submission
Code Describes
Personal history of gestational diabetes
Short Description
Personal history of gestational diabetes
Same as the full description in the CMS dataset.
Parent Code
Z86.3
Personal history of endocrine, nutritional and metabolic diseases

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status
CategoryZ86Personal history of certain other diseases
This CodeZ86.32Personal history of gestational diabetes

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z86.32.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Present on Admission (POA)Billing

Z86.32 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • H/O: diabetes mellitus
  • Past pregnancy history of gestational diabetes mellitus
  • Supervision of high risk pregnancy done
  • Supervision of high risk pregnancy with history of gestational diabetes mellitus done

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Personal history of conditions classifiable to O24.4

Type 1 Excludes

  • gestational diabetes mellitus in current pregnancy O24.4

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • History
      • personal (of)
        • disease or disorder (of)
          • endocrine
            • gestational diabetes
    • History
      • personal (of)
        • disease or disorder (of)
          • metabolic
            • gestational diabetes
    • History
      • personal (of)
        • gestational diabetes

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC030
Personal history of other disease
Default principal diagnosis: inpatient No · outpatient Yes

Patient EducationClinical

Diabetes and Pregnancy

If you have diabetes, your blood glucose, or blood sugar, levels are too high. Glucose comes from the foods you eat. A hormone called insulin helps the glucose get into your cells to give them energy. With type 1 diabetes, your body does not make insulin. With type 2 diabetes, your body does not make or use insulin well.

The full article covers:

  • What is diabetes?
  • What is gestational diabetes?
  • Who is more likely to develop gestational diabetes?
  • How do I know if I have gestational diabetes?
  • How can diabetes affect my pregnancy?
  • How can I manage diabetes during pregnancy?

Read the full article at MedlinePlus

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

Convert Z86.32 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V12.21 Hx gestational diabetes
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z86.32Overview

Is Z86.32 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report personal history of gestational diabetes on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can Z86.32 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because personal history of gestational diabetes describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z86.32 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for personal history of gestational diabetes on inpatient claims.

What is the ICD-9 equivalent of Z86.32?

Under the General Equivalence Mappings, personal history of gestational diabetes converts to ICD-9-CM V12.21 (hx gestational diabetes). The mapping is a direct match.