Chapter VI · G00-G99

Diseases of the nervous system

68 categories and 389 codes in 11 blocks, from the Master Industry Table 2021. Open a category for its codes and their markers.

G00-G09Inflammatory diseases of the central nervous system

Block 065 · 10 categories

Category	Title	Codes	Valid for use
G00	Bacterial meningitis, not elsewhere classified	7	6
G01	Meningitis in bacterial diseases classified elsewhere	1	1
G02	Meningitis in other infectious and parasitic diseases classified elsewhere	4	3
G03	Meningitis due to other and unspecified causes	6	5
G04	Encephalitis, myelitis and encephalomyelitis	6	5
G05	Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere	5	4
G06	Intracranial and intraspinal abscess and granuloma	4	3
G07	Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere	1	1
G08	Intracranial and intraspinal phlebitis and thrombophlebitis	1	1
G09	Sequelae of inflammatory diseases of central nervous system	1	1

G10-G14Systemic atrophies primarily affecting the central nervous system

Block 066 · 5 categories

Category	Title	Codes	Valid for use
G10	Huntington's disease	1	1
G11	Hereditary ataxia	8	7
G12	Spinal muscular atrophy and related syndromes	6	5
G13	Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere	5	4
G14	Postpolio syndrome	1	1

G20-G26Extrapyramidal and movement disorders

Block 067 · 7 categories

Category	Title	Codes	Valid for use
G20	Parkinson's disease	1	1
G21	Secondary parkinsonism	8	7
G22	Parkinsonism in diseases classified elsewhere	1	1
G23	Other degenerative diseases of basal ganglia	6	5
G24	Dystonia	9	8
G25	Other extrapyramidal and movement disorders	10	9
G26	Extrapyramidal and movement disorders in diseases classified elsewhere	1	1

G30-G32Other degenerative diseases of the nervous system

Block 068 · 3 categories

Category	Title	Codes	Valid for use
G30	Alzheimer's disease	5	4
G31	Other degenerative diseases of nervous system, not elsewhere classified	6	5
G32	Other degenerative disorders of nervous system in diseases classified elsewhere	3	2

G35-G37Demyelinating diseases of the central nervous system

Block 069 · 3 categories

Category	Title	Codes	Valid for use
G35	Multiple sclerosis	1	1
G36	Other acute disseminated demyelination	5	4
G37	Other demyelinating diseases of central nervous system	9	8

G40-G47Episodic and paroxysmal disorders

Block 070 · 7 categories

Category	Title	Codes	Valid for use
G40	Epilepsy	11	10
G41	Status epilepticus	6	5
G43	Migraine	7	6
G44	Other headache syndromes	7	6
G45	Transient cerebral ischaemic attacks and related syndromes	8	7
G46	Vascular syndromes of brain in cerebrovascular diseases (I60-I67+)	10	9
G47	Sleep disorders	8	7

G50-G59Nerve, nerve root and plexus disorders

Block 071 · 10 categories

Category	Title	Codes	Valid for use
G50	Disorders of trigeminal nerve	5	4
G51	Facial nerve disorders	8	7
G52	Disorders of other cranial nerves	8	7
G53	Cranial nerve disorders in diseases classified elsewhere	6	5
G54	Nerve root and plexus disorders	11	10
G55	Nerve root and plexus compressions in diseases classified elsewhere	6	5
G56	Mononeuropathies of upper limb	8	7
G57	Mononeuropathies of lower limb	10	9
G58	Other mononeuropathies	5	4
G59	Mononeuropathy in diseases classified elsewhere	3	2

G60-G64Polyneuropathies and other disorders of the peripheral nervous system

Block 072 · 5 categories

Category	Title	Codes	Valid for use
G60	Hereditary and idiopathic neuropathy	7	6
G61	Inflammatory polyneuropathy	5	4
G62	Other polyneuropathies	6	5
G63	Polyneuropathy in diseases classified elsewhere	9	8
G64	Other disorders of peripheral nervous system	1	1

G70-G73Diseases of myoneural junction and muscle

Block 073 · 4 categories

Category	Title	Codes	Valid for use
G70	Myasthenia gravis and other myoneural disorders	6	5
G71	Primary disorders of muscles	7	6
G72	Other myopathies	8	7
G73	Disorders of myoneural junction and muscle in diseases classified elsewhere	9	8

G80-G83Cerebral palsy and other paralytic syndromes

Block 074 · 4 categories

Category	Title	Codes	Valid for use
G80	Cerebral palsy	8	7
G81	Hemiplegia	4	3
G82	Paraplegia and tetraplegia	7	6
G83	Other paralytic syndromes	8	7

G90-G99Other disorders of the nervous system

Block 075 · 10 categories

Category	Title	Codes	Valid for use
G90	Disorders of autonomic nervous system	8	7
G91	Hydrocephalus	7	6
G92	Toxic encephalopathy	1	1
G93	Other disorders of brain	11	10
G94	Other disorders of brain in diseases classified elsewhere	5	4
G95	Other diseases of spinal cord	6	5
G96	Other disorders of central nervous system	5	4
G97	Postprocedural disorders of nervous system, not elsewhere classified	6	5
G98	Other disorders of nervous system, not elsewhere classified	1	1
G99	Other disorders of nervous system in diseases classified elsewhere	5	4

Source and terms

Reproduced from the national table, unaltered.

The Department publishes the table for the industry to load. The ICD-10 Master Industry Table page

Codes and descriptions: ICD-10 Master Industry Table (MIT) 2021, published 16 March 2021 by the National Department of Health, Republic of South Africa. ® National Department of Health: all rights reserved. Reproduced for reference without alteration.

ICD-10 is the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, © World Health Organization. The WHO ICD-10 descriptions appear as published in the MIT.

Prescribed Minimum Benefit (PMB) and Chronic Disease List (CDL) markers: Council for Medical Schemes, PMB Coded List, as read by GreenNotes. Benefit decisions rest with each medical scheme.

Source file: ICD-10_MIT_2021_Excel_16-March_2021.xlsx. Found an error in a code or description? Write to help@greennotes.co.za.

This lookup is a reference to the published code table, not coding advice. Code assignment is the treating practitioner’s responsibility, following the South African ICD-10 Coding Standards and Guidelines and the WHO ICD-10 volumes. GreenNotes does not warrant that the table is complete or current.

This is the South African table. Most ICD-10 results online are the United States’ ICD-10-CM, a different code set that South African medical schemes do not accept. Regulation 5 of the General Regulations under the Medical Schemes Act requires the diagnostic code on every account, and the Master Industry Table is the list it is coded from.

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