G61.0 ICD-10-CA code: Guillain-Barré syndrome
G61.0 is the ICD-10-CA code for “Guillain-Barré syndrome” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
G61.0Guillain-Barré syndrome
Short description: Guillain Barré syndrome
ICD-10-CA · Canada · Also written G610
Index terms
Entries in CIHI’s alphabetical index that lead to G61.0. Searching the index by the condition the note names is how coders reach this code.
- Miller Fisher syndrome
- Syndrome, Miller Fisher
- Neuromyelitis, ascending
- Barré Guillain disease or syndrome
- Guillain Barré disease or syndrome
- Neuritis, infectious (multiple) NEC
- Neuritis, multiple, infective, acute
- Polyneuritis, polyneuritic, febrile, acute
- Landry Guillain Barré syndrome or paralysis
- Polyneuritis, polyneuritic, infective (acute)
- Polyradiculoneuropathy (acute) (postinfective)
- Polyneuritis, polyneuritic, postinfective (acute)
- Polyneuritis, polyneuritic, acute (post )infective
- Paralysis, paralytic (complete) (incomplete), Landry's
- Encephalomyeloradiculoneuritis (acute) (Guillain Barré)
- Paralysis, paralytic (complete) (incomplete), ascending (spinal), acute
- Paralysis, paralytic (complete) (incomplete), spinal (cord), ascending acute
Notes for G61.0
As CIHI prints them, with any note G61.0 takes from the headings above it.
Includes
- Acute (post-)infective polyneuritisMiller Fisher syndrome
Excludes
Conditions classified elsewhere.
- Neuralgia NOS (M79.2)neuritis NOS (M79.2)peripheral neuritis in pregnancy (O26.8)radiculitis NOS (M54.1)From G60-G64 Polyneuropathies and other disorders of the peripheral nervous system
- 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 G61.0 sits
- 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
- 2Block G60-G64Polyneuropathies and other disorders of the peripheral nervous system
- 3Category G61Inflammatory polyneuropathy
- 4Valid code G61.0Guillain-Barré syndrome
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
What does ICD-10-CA code G61.0 mean?
G61.0 is the ICD-10-CA code for “Guillain-Barré syndrome” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is G61.0 in ICD-10-CA?
G61.0 sits under G61 Inflammatory polyneuropathy, within G60-G64 Polyneuropathies and other disorders of the peripheral nervous system, within Chapter 6: Diseases of the nervous system (G00-G99).
What coding notes apply to G61.0?
ICD-10-CA lists Includes, Excludes notes for G61.0, 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.