G97.1
Other reaction to spinal and lumbar puncture
G97.1 (also written G971) is a billable ICD-10-CM diagnosis code for other reaction to spinal and lumbar puncture. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 18 codes in category G97 (Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified). The Alphabetic Index lists it under 15 entries. Its coding notes include a Code also instruction and 9 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
Intraoperative and postprocedural complications are coded from the body system chapters unless the complication is specifically indexed to a T code.
Code also
Two codes may be needed to describe the condition. This note gives no sequencing order.
- , if applicable, any associated headache with orthostatic component (R51.0)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (8 notes)
- 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)
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the Neuro Rehabilitation clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026Inclusion terms
Conditions classified to this code.
- Headache due to lumbar puncture
- Other reaction to spinal dural puncture
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 15 entries
- 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