2027 ICD-10-CM Diagnosis Code G93.82Brain death

ICD-10-CM Codes›G00–G99›G89-G99›G93

ICD-10-CM G93.82
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G93.82 is a billable ICD-10-CM diagnosis code for brain death. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 80 through 81. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 718 closely related codes. Coders also document this condition as brainstem death. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other nervous system disorders (neither hereditary nor degenerative).

Code Identity

ICD-10-CM Code
G93.82
Billable Status
Yes — Valid for Submission
Code Describes
Brain death
Short Description
Brain death
Same as the full description in the CMS dataset.
Parent Code
G93.8
Other specified disorders of brain

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG89-G99Other disorders of the nervous system
CategoryG93Other disorders of brain
This CodeG93.82Brain death

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Brainstem death
  • Brainstem death criteria
  • Brainstem death criteria fulfilled
  • Brainstem death criteria fulfilled after first examination
  • Brainstem death criteria fulfilled after second examination

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G93.82: its own notes plus those printed at 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.

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)

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.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS020
Other nervous system disorders (neither hereditary nor degenerative)
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Brain Death

    a state of prolonged irreversible cessation of all brain activity, including lower brain stem function with the complete absence of voluntary movements, responses to stimuli, brain stem reflexes, and spontaneous respirations. reversible conditions which mimic this clinical state (e.g., sedative overdose, hypothermia, etc.) are excluded prior to making the determination of brain death. (from adams et al., principles of neurology, 6th ed, pp348-9)

Patient EducationClinical

End of Life Issues

Planning for the end of life can be difficult. But by deciding what end-of-life care best suits your needs when you are healthy, you can help those close to you make the right choices when the time comes.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert G93.82 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
348.82 Brain death
Exact Match The mapping is direct, with no qualifiers.

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 G93.82Overview

What is the ICD-10 code for brain death?

The ICD-10-CM code for brain death is G93.82 (sometimes written as G9382). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is G93.82 (Other specified disorders of brain) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report brain death on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does G93.82 group to?

When brain death is the principal diagnosis on an inpatient stay, it groups to MS-DRG 81, 80, with relative weights from 0.7941 to 1.7476 depending on complications. Higher weights mean higher Medicare reimbursement.

Is G93.82 a CC or MCC?

CMS lists G93.82 as an MCC (major complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 718 closely related codes in its exclusion list.

What is the ICD-9 equivalent of G93.82?

Under the General Equivalence Mappings, brain death converts to ICD-9-CM 348.82 (brain death). The mapping is a direct match.