2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 102 through 103, 791, 793. Coders also document this condition as headache following lumbar puncture. 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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G97.1: its own notes plus those printed at G97 and Chapter 6. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

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

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From G97 Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified applies to 18 codes
  • intraoperative and postprocedural cerebrovascular infarction (I97.81-, I97.82-)
From Chapter 6 (G00-G99) Diseases of the nervous system applies to 700 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

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

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name G97.1, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming G97.1: its condition is not part of those codes, and both may be reported when the patient has both.

  • G44 Other headache syndromes
    headache due to lumbar puncture (G97.1)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G97.1Overview

What is the ICD-10 code for other reaction to spinal and lumbar puncture?

The ICD-10-CM code for other reaction to spinal and lumbar puncture is G97.1 (sometimes written as G971). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

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 793, 791, 102, 103, with relative weights from 0.8219 to 4.2192 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.