2026 ICD-10-CM Diagnosis Code O89.4Spinal and epidural anesthesia-induced headache during the puerperium

ICD-10-CM Codes›O00-O9A›O85-O92›O89

ICD-10-CM O89.4
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O89.4 is a billable ICD-10-CM diagnosis code for spinal and epidural anesthesia-induced headache during the puerperium. 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 central nervous system complication of anesthesia during the puerperium. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complications specified during the puerperium.

Code Identity

ICD-10-CM Code
O89.4
Billable Status
Yes — Valid for Submission
Code Describes
Spinal and epidural anesthesia-induced headache during the puerperium
Short Description
Spinal and epidur anesthesia-induced hdache during the puerp
Parent Code
O89
Complications of anesthesia during the puerperium

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO85-O92Complications predominantly related to the puerperium
CategoryO89Complications of anesthesia during the puerperium
This CodeO89.4Spinal and epidural anesthesia-induced headache during the puerperium

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O89.4.

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.

  • Central nervous system complication of anesthesia during the puerperium
  • Complication of anesthesia during the puerperium
  • Low pressure headache
  • Post dural puncture headache
  • Postpartum headache
  • Spinal and epidural anesthesia-induced headache during the puerperium

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.

    • Complication(s) (from) (of)
      • anesthesia, anesthetic
        • spinal and epidural
          • postpartum, puerperal NEC
            • headache
    • Effect, adverse
      • anesthesia
        • spinal and epidural
          • headache
            • postpartum, puerperal
    • Headache
      • spinal and epidural anesthesia - induced
        • postpartum, puerperal

Clinical ClassificationClinical

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

CCSR PRG027
Complications specified during the puerperium
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Anesthesia

Anesthesia is the use of medicines, called anesthetics, to prevent pain during surgery and other medical procedures. Medicine may be given by injection, inhalation, topical lotion, spray, eye drops, or a skin patch.

The full article covers:

  • What is anesthesia?
  • What is anesthesia used for?
  • What are the types of anesthesia?
  • What are the risks of anesthesia?

Read the full article at MedlinePlus

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

Convert O89.4 to ICD-9-CMHistory

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

ICD-9-CM
668.84 Anesth compl-postpartum
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 O89.4Overview

Is O89.4 (Complications of anesthesia during the puerperium) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report spinal and epidural anesthesia-induced headache during the puerperium on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Who can O89.4 be reported for?

The Medicare Code Editor checks spinal and epidural anesthesia-induced headache during the puerperium 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 O89.4?

Under the General Equivalence Mappings, spinal and epidural anesthesia-induced headache during the puerperium converts to ICD-9-CM 668.84 (anesth compl-postpartum). 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.