G94 diagnosis code · Billable category · FY2027
G94 Other disorders of brain in diseases classified elsewhere
- Billable
- Not CC/MCC
- POA reported
G94 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.
Where it sits
- Chapter 6 Diseases of the nervous system (G00-G99)
- G89-G99 Other disorders of the nervous system (G89-G99)
- G94 Other disorders of brain in diseases classified elsewhere
- CC / MCC
- Neither
- MS-DRG
- 056-057
- HCC V28
- –
- POA
- Reported
- Code Editor
- Manifestation
- Index entries
- 12
Instructions
At G94
Excludes1
Code first
- underlying disease
Notes that also apply
Chapter 6 instructions (Excludes2 8): printed on the chapter 6 page.
Index entries
- Typhus (fever)›brain → A75.9 [G94]
- Typhus (fever)›cerebral → A75.9 [G94]
- Malaria, malarial (fever)›cerebral → B50.0 [G94]
- Epilepsy, epileptic, epilepsia (attack) (cerebral) (convulsion) (fit) (seizure)›parasitic NOS → B71.9 [G94]
- Encephalopathy (acute)›posthypoglycemic (coma) → E16.1 [G94]
- Cyst (colloid) (mucous) (simple) (retention)›brain (acquired)›hydatid → B67.99 [G94]
- Cyst (colloid) (mucous) (simple) (retention)›hydatid›brain → B67.99 [G94]
- Disease, diseased›brain›parasitic NEC → B71.9 [G94]
- Disease, diseased›parasitic›cerebral NEC → B71.9 [G94]
- Encephalopathy (acute)›in (due to) (with)›hyperinsulinism → E16.1 [G94]
- Hyperinsulinism (functional)›with›encephalopathy → E16.1 [G94]
- Malaria, malarial (fever)›falciparum›with complications NEC›cerebral → B50.0 [G94]
NCHS Alphabetic Index. Index first, then the Tabular List.
Medicare grouping and edits
| CC / MCC | Neither |
|---|---|
| Appendix B | MDC 01 Diseases and Disorders of the Nervous System, MS-DRG 056-057 (Degenerative Nervous System Disorders with MCC…) |
| Code Editor | Manifestation code: not allowed as principal diagnosis |
| POA | Reported |
| HCC V28 | – |
CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.