2026 ICD-10-CM Diagnosis Code G97.1Other reaction to spinal and lumbar puncture

ICD-10-CM Codes›G00–G99›G89-G99›G97

ICD-10-CM G97.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G97.1 is a billable ICD-10-CM diagnosis code for other reaction to spinal and lumbar puncture. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 102 through 103. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative nervous system complication.

Code Identity

ICD-10-CM Code
G97.1
Billable Status
Yes — Valid for Submission
Code Describes
Other reaction to spinal and lumbar puncture
Short Description
Other reaction to spinal and lumbar puncture
Same as the full description in the CMS dataset.
Parent Code
G97
Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG89-G99Other disorders of the nervous system
CategoryG97Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
This CodeG97.1Other reaction to spinal and lumbar puncture

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Headache following lumbar puncture
  • Intracranial hypotension
  • Intracranial hypotension due to lumbar puncture
  • Low pressure headache
  • Neurological disorder due to and following lumbar puncture
  • Obstetric spinal and epidural anesthesia-induced headache
  • Post dural puncture headache
  • Reaction to lumbar puncture

Tabular List NotesGuidance

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

Inclusion Terms

  • Headache due to lumbar puncture
  • Other reaction to spinal dural puncture

Code Also

  • , if applicable, any associated headache with orthostatic component R51.0

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)
      • lumbar puncture
    • Complication(s) (from) (of)
      • lumbar puncture
        • headache or reaction
    • Complication(s) (from) (of)
      • postoperative
        • lumbar puncture
    • Complication(s) (from) (of)
      • puncture, spinal
    • Complication(s) (from) (of)
      • puncture, spinal
        • headache or reaction
    • Complication(s) (from) (of)
      • spinal
        • puncture or tap
    • Complication(s) (from) (of)
      • spinal
        • puncture or tap
          • headache or reaction
    • Headache
      • lumbar puncture
    • Headache
      • postspinal puncture
    • Headache
      • spinal fluid loss (from puncture)
    • Reaction
      • fluid loss, cerebrospinal
    • Reaction
      • lumbar puncture
    • Reaction
      • spinal puncture
    • Reaction
      • spinal puncture
        • dural
    • Syncope(near) (pre-)
      • due to spinal (lumbar) puncture

Clinical ClassificationClinical

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

CCSR NVS021
Postprocedural or postoperative nervous system complication
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Intracranial Hypotension

    reduction of cerebrospinal fluid pressure characterized clinically by orthostatic headache and occasionally by an abducens nerve palsy; hearing loss; nausea; neck stiffness, and other symptoms. this condition may be spontaneous or secondary to cerebrospinal fluid leak; spinal puncture; neurosurgical procedures; dehydration; uremia; trauma (see also craniocerebral trauma); and other processes. chronic hypotension may be associated with subdural hematomas (see hematoma, subdural) or hygromas. (from semin neurol 1996 mar;16(1):5-10; adams et al., principles of neurology, 6th ed, pp637-8)

Convert G97.1 to ICD-9-CMHistory

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

ICD-9-CM
349.0 Lumbar puncture reaction
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 G97.1Overview

Is G97.1 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other reaction to spinal and lumbar puncture on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does G97.1 group to?

When other reaction to spinal and lumbar puncture is the principal diagnosis on an inpatient stay, it groups to MS-DRG 102, 103, with relative weights from 0.8363 to 1.1209 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of G97.1?

Under the General Equivalence Mappings, other reaction to spinal and lumbar puncture converts to ICD-9-CM 349.0 (lumbar puncture reaction). 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.