2026 ICD-10-CM Diagnosis Code O14.24HELLP syndrome, complicating childbirth

ICD-10-CM Codes›O00-O9A›O10-O16›O14

ICD-10-CM O14.24
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O14.24 is a billable ICD-10-CM diagnosis code for HELLP syndrome, complicating childbirth. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complications specified during childbirth and Hypertension and hypertensive-related conditions complicating pregnancy; childbirth; and the puerperium.

Code Identity

ICD-10-CM Code
O14.24
Billable Status
Yes — Valid for Submission
Code Describes
HELLP syndrome, complicating childbirth
Short Description
HELLP syndrome, complicating childbirth
Same as the full description in the CMS dataset.
Parent Code
O14.2
HELLP syndrome

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO10-O16Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
CategoryO14Pre-eclampsia
This CodeO14.24HELLP syndrome, complicating childbirth

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O14.24.

Maternity diagnoses
The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).

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.

    • Delivery(childbirth) (labor)
      • cesarean (for)
        • pre-eclampsia
          • severe
            • with hemolysis, elevated liver enzymes and low platelet count (HELLP)
    • HELLP syndrome(hemolysis, elevated liver enzymes and low platelet count)
      • complicating
        • childbirth
    • Pre-eclampsia
      • severe
        • with hemolysis, elevated liver enzymes and low platelet count (HELLP)
          • complicating
            • childbirth
    • Syndrome
      • HELLP (hemolysis, elevated liver enzymes and low platelet count)
        • complicating
          • childbirth

Clinical ClassificationClinical

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

CCSR PRG023
Complications specified during childbirth
Default principal diagnosis: inpatient No · outpatient No
CCSR PRG020
Hypertension and hypertensive-related conditions complicating pregnancy; childbirth; and the puerperium
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • HELLP Syndrome

    a syndrome of hemolysis, elevated liver enzymes, and low blood platelets count (thrombocytopenia). hellp syndrome is observed in pregnant people with pre-eclampsia or eclampsia who also exhibit liver damage and abnormalities in blood coagulation.

Convert O14.24 to ICD-9-CMHistory

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

ICD-9-CM
642.51 Severe preeclamp-deliver
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement O14.24 replaces the following previously assigned code(s):

  • O14.20 - HELLP syndrome (HELLP), unspecified trimester
FY 2018AddedAdded to the ICD-10-CM code setEffective October 1, 2017.
FY 2019–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About O14.24Overview

Is O14.24 (HELLP syndrome) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report HELLP syndrome, complicating childbirth on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Who can O14.24 be reported for?

The Medicare Code Editor checks HELLP syndrome, complicating childbirth against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.

What is the ICD-9 equivalent of O14.24?

Under the General Equivalence Mappings, HELLP syndrome, complicating childbirth converts to ICD-9-CM 642.51 (severe preeclamp-deliver). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.