2026 ICD-10-CM Diagnosis Code O99.344Other mental disorders complicating childbirth

ICD-10-CM Codes›O00-O9A›O94-O9A›O99

ICD-10-CM O99.344
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O99.344 is a billable ICD-10-CM diagnosis code for other mental disorders 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). Coders also document this condition as anxiety disorder in mother complicating childbirth. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complications specified during childbirth and Miscellaneous mental and behavioral disorders/conditions.

Code Identity

ICD-10-CM Code
O99.344
Billable Status
Yes — Valid for Submission
Code Describes
Other mental disorders complicating childbirth
Short Description
Other mental disorders complicating childbirth
Same as the full description in the CMS dataset.
Parent Code
O99.34
Other mental disorders complicating pregnancy, childbirth, and the puerperium

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO94-O9AOther obstetric conditions, not elsewhere classified
CategoryO99Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
This CodeO99.344Other mental disorders complicating childbirth

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O99.344.

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).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anxiety disorder in mother complicating childbirth
  • Depressive disorder in mother complicating childbirth
  • Major depressive disorder in mother complicating childbirth
  • Mental disorder in mother complicating childbirth
  • Psychotic disorder in mother complicating childbirth

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)
      • complicated
        • by
          • mental disorder NEC

Clinical ClassificationClinical

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

CCSR PRG023
Complications specified during childbirth
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR MBD013
Miscellaneous mental and behavioral disorders/conditions
Default principal diagnosis: inpatient No · outpatient No

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 O99.344 to ICD-9-CMHistory

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

ICD-9-CM
648.41 Mental disorder-deliver
Approximate The match is approximate rather than exact.

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 O99.344Overview

Is O99.344 a billable code?

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

Who can O99.344 be reported for?

The Medicare Code Editor checks other mental disorders 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 O99.344?

Under the General Equivalence Mappings, other mental disorders complicating childbirth converts to ICD-9-CM 648.41 (mental disorder-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.