FY2027 ICD-10-CM reference
G97: Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
CMS-HCC V28
Not applicable to this nonbillable heading
CMS-HCC V24
Not applicable to this nonbillable heading
ESRD
Not applicable to this nonbillable heading
PACE
Not applicable to this nonbillable heading
RxHCC
Not applicable to this nonbillable heading
HHS-HCC
Not applicable to this nonbillable heading
More specific FY2027 codes
- G97.0: Cerebrospinal fluid leak from spinal punctureBillable code
- G97.1: Other reaction to spinal and lumbar punctureBillable code
- G97.2: Intracranial hypotension following ventricular shuntingBillable code
- G97.3: Intraoperative hemorrhage and hematoma of a nervous system organ or structure complicating a procedureNonbillable heading
- G97.4: Accidental puncture and laceration of a nervous system organ or structure during a procedureNonbillable heading
- G97.5: Postprocedural hemorrhage of a nervous system organ or structure following a procedureNonbillable heading
- G97.6: Postprocedural hematoma and seroma of a nervous system organ or structure following a procedureNonbillable heading
- G97.8: Other intraoperative and postprocedural complications and disorders of nervous systemNonbillable heading
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: G00-G99 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: G00-G99 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: G00-G99 (chapter, inherited).
Excludes2
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Source: G00-G99 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: G00-G99 (chapter, inherited).
Excludes2
injury, poisoning and certain other consequences of external causes (S00-T88)
Source: G00-G99 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: G00-G99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: G00-G99 (chapter, inherited).
Excludes2
intraoperative and postprocedural cerebrovascular infarction (I97.81-, I97.82-)
Source: G97 (category, direct).
Compare the FY2027 additions, removals and billable-status changes
What does G97 mean in FY2027?
The official ICD-10-CM descriptor is Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is G97 billable in FY2027?
The FY2027 order file marks G97 as a nonbillable heading. Select a complete billable child code.
Does G97 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition