Other disorders of nervous system not elsewhere classified
In Other disorders of the nervous system (G89-G99), chapter 6: Diseases of the Nervous System
2 billable codes under G98: none are a CC or MCC; none map to an HCC.
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Instructional notes
Includes: conditions that are coded here
- nervous system disorder NOS
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)
All codes under G98
G98 can't be used on a claim. Pick a billable code below; grey headings group them.
G98 MS-DRGs
As the principal diagnosis, the billable codes under G98 group to MS-DRG 070, 071, 072, 974, 975, or 976 (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 (2 of 2 codes)
- DRG 071 Other Cerebrovascular Disorders with CC (2 of 2 codes)
- DRG 072 Other Cerebrovascular Disorders without CC/MCC (2 of 2 codes)
- DRG 974 HIV with Major Related Condition with MCC (1 of 2 codes)
- DRG 975 HIV with Major Related Condition with CC (1 of 2 codes)
- DRG 976 HIV with Major Related Condition without CC/MCC (1 of 2 codes)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Neurologic Diseases
The brain, spinal cord, and nerves make up the nervous system. Together they control all the workings of the body. When something goes wrong with a part of your nervous system, you can have trouble moving, speaking, swallowing, breathing, or learning. You can also have problems with your memory, senses, or mood.
Read more about neurologic diseases on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.