Is ICD-10-CM code G93 billable?

No, G93 (Other disorders of brain) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code G93 belong to?

G93 belongs to Chapter 6 of the ICD-10-CM tabular list: G00–G99 (Diseases of the Nervous System).

G93Not billable, use a more specific code below

Other disorders of brain

In Other disorders of the nervous system (G89-G99), chapter 6: Diseases of the Nervous System

20 billable codes under G93: 5 are an MCC, 7 are a CC; 8 map to HCC 200 (Friedreich and Other Hereditary Ataxias; Huntington Disease), HCC 202 (Coma, Brain Compression/Anoxic Damage), HCC 127 (Dementia, Mild or Unspecified) and 1 more HCCs.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers default dominant or nondominant side for hemiplegia and monoplegia, and use and sequencing of G89 pain codes, including postoperative, chronic, and neoplasm-related pain.

Dominant/nondominant side (page 45)
Pain - Category G89 (page 45)

Read Section I.C.6 (page 45)

All codes under G93

G93 can't be used on a claim. Pick a billable code below; grey headings group them.

G93 MS-DRGs

As the principal diagnosis, the billable codes under G93 group to these 17 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 070 Other Cerebrovascular Disorders with MCC (10 of 20 codes)
DRG 071 Other Cerebrovascular Disorders with CC (10 of 20 codes)
DRG 072 Other Cerebrovascular Disorders without CC/MCC (10 of 20 codes)
DRG 974 HIV with Major Related Condition with MCC (8 of 20 codes)
DRG 975 HIV with Major Related Condition with CC (8 of 20 codes)
DRG 976 HIV with Major Related Condition without CC/MCC (8 of 20 codes)
DRG 080 Nontraumatic Stupor and Coma with MCC (3 of 20 codes)
DRG 081 Nontraumatic Stupor and Coma without MCC (3 of 20 codes)
DRG 091 Other Disorders of Nervous System with MCC (3 of 20 codes)
DRG 092 Other Disorders of Nervous System with CC (3 of 20 codes)
DRG 093 Other Disorders of Nervous System without CC/MCC (3 of 20 codes)
DRG 947 Signs and Symptoms with MCC (3 of 20 codes)
DRG 948 Signs and Symptoms without MCC (3 of 20 codes)
DRG 102 Headaches with MCC (1 of 20 codes)
DRG 103 Headaches without MCC (1 of 20 codes)
DRG 791 Prematurity with Major Problems (1 of 20 codes)
DRG 793 Full Term Neonate with Major Problems (1 of 20 codes)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Brain Diseases

Your brain is the control center of your body. It controls your thoughts, memory, speech, and movement. It regulates the function of many organs. It's part of your nervous system, which also includes your spinal cord and peripheral nerves. The nervous system sends signals between your brain and the rest of the body. Your nerves take in information from your senses and send it to the brain to be processed. Your brain and nerves also communicate to help you move and to control your body's functions.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.