G97.84 ICD-10-CM Code: Intracranial hypotension following other procedure
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FY 2026 Apr update / Diseases of the nervous system (G00-G99) / Other disorders of the nervous system (G89-G99)
G97.84
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceIntracranial hypotension following other procedure
Low cerebrospinal fluid pressure in the brain that develops after a procedure other than lumbar shunting, such as spinal tap or other neurological procedures.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
00
RAF 0
Code Trumping
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for G97.84 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for G97.84 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for G97.84 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for G97.84 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for G97.84 in this effective period.
Use Additional
Official- code to further specify disorder
Code Also
Official- , if applicable:
- accidental puncture or laceration of dura during a procedure (G97.41)
- cerebrospinal fluid leak from spinal puncture (G97.0)
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is G97.84 an HCC code?
No. G97.84 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
G97.84 is the ICD-10-CM diagnosis code for intracranial hypotension following other procedure. Low cerebrospinal fluid pressure in the brain that develops after a procedure other than lumbar shunting, such as spinal tap or other neurological procedures. G97.84 sits in the ICD-10-CM chapter for diseases of the nervous system (g00-g99), within the section covering other disorders of the nervous system (g89-g99).
G97.84 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Use this code only when the procedure is NOT a lumbar CSF shunt; use G97.83 for shunt-related cases.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for G97.84 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code only when the procedure is NOT a lumbar CSF shunt; use G97.83 for shunt-related cases
- •Document the specific procedure that led to the intracranial hypotension