G50-G59 ICD-10-CA block: Nerve, nerve root and plexus disorders
G50-G59 isn’t a code on its own. Choose one of the 59 codes beneath it, the one the documentation supports.
Official description
G50-G59Nerve, nerve root and plexus disorders (G50-G59)
ICD-10-CA · Canada
Codes in G50-G59
G50-G59 isn’t a code on its own. Open the group that matches what the note documents.
G50Disorders of trigeminal nerve (4 codes)G51Facial nerve disorders (7 codes)G52Disorders of other cranial nerves (7 codes)G53Cranial nerve disorders in diseases classified elsewhere (5 codes)G54Nerve root and plexus disorders (10 codes)G55Nerve root and plexus compressions in diseases classified elsewhere (5 codes)G56Mononeuropathies of upper limb (6 codes)G57Mononeuropathies of lower limb (9 codes)G58Other mononeuropathies (4 codes)G59Mononeuropathy in diseases classified elsewhere (2 codes)Notes for G50-G59
As CIHI prints them, with any note G50-G59 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Current traumatic nerve, nerve root and plexus disorders - see nerve injury by body regionneuralgia NOS (M79.2)neuritis NOS (M79.2)peripheral neuritis in pregnancy (O26.8)radiculitis NOS (M54.1)
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 6: Diseases of the nervous system (G00-G99)
Where G50-G59 sits
- 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
- 2Block G50-G59Nerve, nerve root and plexus disorders
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is G50-G59 a valid ICD-10-CA code?
No. G50-G59 (Nerve, nerve root and plexus disorders) is a block heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 59 codes; record the one the documentation supports.
Where is G50-G59 in ICD-10-CA?
G50-G59 sits under Chapter 6: Diseases of the nervous system (G00-G99).
What coding notes apply to G50-G59?
ICD-10-CA lists Excludes notes for G50-G59, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside G50-G59
G00-G09Inflammatory diseases of the central nervous systemG10-G14Systemic atrophies primarily affecting the central nervous systemG20-G26Extrapyramidal and movement disordersG30-G32Other degenerative diseases of the nervous systemG35-G37Demyelinating diseases of the central nervous systemG40-G47Episodic and paroxysmal disordersG60-G64Polyneuropathies and other disorders of the peripheral nervous systemG70-G73Diseases of myoneural junction and muscleG80-G83Cerebral palsy and other paralytic syndromesG90-G99Other disorders of the nervous system