Block · Chapter 6

G89-G99 Other disorders of the nervous system (G89-G99)

Block G89-G99 groups 11 categories with 112 billable codes in FY2027.

Where it sits

Neighbouring blocks

Categories in G89-G99

G89
Pain, not elsewhere classified
Central pain syndrome → G89.0
- 10 billable codes
G90
Disorders of autonomic nervous system
Carotidynia → G90.01
- 21 billable codes
- 11 CC
- 3 with HCC
G91
Hydrocephalus
Hydrocephalus (acquired) (external) (internal) (malignant) (recurrent) → G91.9
- 7 billable codes
- 6 CC
- 7 with HCC
G92
Toxic encephalopathy
Bromidism, bromism → G92.8
- 8 billable codes
- 3 CC
- 2 MCC
G93
Other disorders of brain
Automatism → G93.89
- 20 billable codes
- 7 CC
- 5 MCC
- 8 with HCC
G94
Other disorders of brain in diseases classified elsewhere
–
- Billable, no subdivisions
G95
Other and unspecified diseases of spinal cord
Myelomalacia → G95.89
- 8 billable codes
- 6 CC
- 2 MCC
- 8 with HCC
G96
Other disorders of central nervous system
Leptomeningopathy → G96.198
- 14 billable codes
- 6 CC
G97
Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
Durotomy (inadvertent) (incidental) → G97.41
- 18 billable codes
- 17 CC
G98
Other disorders of nervous system not elsewhere classified
Disorder (of)nervous system → G98.8
- 2 billable codes
G99
Other disorders of nervous system in diseases classified elsewhere
Myelopathy (spinal cord)in (due to)disease classified elsewhere → G99.2
- 3 billable codes
- 2 CC
- 1 with HCC

Syndrome → G89, G90, G92, G93, G95, G97 (49 entries)
Complication(s) (from) (of) → G96, G97, G98 (32 entries)
Cyst (colloid) (mucous) (simple) (retention) → G93, G95, G96 (22 entries)
Disease, diseased → G90, G93, G95, G96, G98 (20 entries)
Pain(s) → G89 (19 entries)
Disorder (of) → G90, G96, G98 (13 entries)
Hydrocephalus (acquired) (external) (internal) (malignant) (recurrent) → G91, G93 (13 entries)
Encephalopathy (acute) → G92, G93 (12 entries)
Leak, leakage → G96, G97 (12 entries)
Hypotension (arterial) (constitutional) → G90, G96, G97 (8 entries)
Hemorrhage, hemorrhagic (concealed) → G95, G97 (7 entries)
Myelopathy (spinal cord) → G95, G99 (7 entries)
Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) → G95, G98 (6 entries)
Compression → G90, G93, G95 (6 entries)
Deformity → G93, G95, G96 (6 entries)

+138 more main terms; the search box finds them by word.

Chapter 6 instructions (Excludes2 8): printed on the chapter 6 page.