2027 ICD-10-CM Diagnosis Code G97.82Other postprocedural complications and disorders of nervous system
ICD-10-CM Codes›G00–G99›G89-G99›G97
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
G97.82 is a billable ICD-10-CM diagnosis code for other postprocedural complications and disorders of nervous system. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 91 through 93, 791, 793. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 60 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative nervous system complication.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute headache
- Acute headache due to craniotomy
- Acute posttraumatic headache
- Acute toxicity of brain due to and following radiotherapy of brain
- Anoxic brain damage during AND/OR resulting from a procedure
- Anoxic encephalopathy
- Central nervous system complications of care
- Cerebrospinal fluid otorrhea
- Complication of cutaneous surgery
- Disorder of brain due to and following radiotherapy
- Disorder of central nervous system due to and following procedure
- Disorder of excessive somnolence
- Disorder of nerve repair
- Disorder of nervous system following procedure
- Disorder of nervous system following radiotherapy
- Disorder of spinal cord due to and following radiotherapy
- Disruption of nerve repair
- Excessive somnolence
- Headache following myelography
- Impairment of motor nerve function as a complication of cutaneous surgery
- Low pressure headache
- Meningitis following central neuraxial block
- Meningitis following procedure
- Neurological morbidity
- Obturator neuralgia
- Post dural puncture headache
- Postoperative cerebrospinal fluid leak
- Postoperative cerebrospinal otorrhea
- Postoperative meningitis
- Postoperative pseudomeningocele
- Post-procedural cauda equina syndrome
- Post-surgery obturator neuralgia
- Posttraumatic headache
- Pseudomeningocele
- Radiation myelitis
- Somnolence syndrome
- Somnolence syndrome following radiotherapy
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to G97.82: its own notes plus those printed at G97.8, G97, and Chapter 6. A note printed at a category, block or chapter applies to every code under it.
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.
- 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)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to further specify disorder
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
postprocedural G97.82
specified NEC G97.82
postprocedural See Also: Complications, surgical procedure;
nervous system G97.82
Syndrome See Also: Disease;
hyperperfusion G97.82
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Convert G97.82 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About G97.82Overview
What is the ICD-10 code for other postprocedural complications and disorders of nervous system?
The ICD-10-CM code for other postprocedural complications and disorders of nervous system is G97.82 (sometimes written as G9782). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is G97.82 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other postprocedural complications and disorders of nervous system on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does G97.82 group to?
When other postprocedural complications and disorders of nervous system is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, 91, 92, 93, with relative weights from 0.7783 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.
Is G97.82 a CC or MCC?
CMS lists G97.82 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 60 closely related codes in its exclusion list.
Does G97.82 need an additional code?
When the condition applies, yes. The Use Additional Code note at G97.8, which applies to G97.82, reads: code to further specify disorder. The additional code is reported after G97.82.
