G83.5 ICD-10-CA code: Locked-in syndrome
G83.5 is the ICD-10-CA code for “Locked-in syndrome” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
G83.5Locked-in syndrome
Short description: Locked in syndrome
ICD-10-CA · Canada · Also written G835
Index terms
Entries in CIHI’s alphabetical index that lead to G83.5. Searching the index by the condition the note names is how coders reach this code.
- Locked in state
- Syndrome, locked in
- State (of), locked in
Notes for G83.5
As CIHI prints them, with any note G83.5 takes from the headings above it.
Includes
- Paralysis (complete)(incomplete), except as in G80-G82From G83 Other paralytic syndromes
Excludes
Conditions classified elsewhere.
- 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)
Note
- For primary coding, this category is to be used only when the listed conditions are reported without further specification, or are stated to be old or longstanding but of unspecified cause. The category is also for use in multiple coding to identify these conditions resulting from any cause.From G83 Other paralytic syndromes
Where G83.5 sits
- 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
- 2Block G80-G83Cerebral palsy and other paralytic syndromes
- 3Category G83Other paralytic syndromes
- 4Valid code G83.5Locked-in 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 G83.5 mean?
G83.5 is the ICD-10-CA code for “Locked-in syndrome” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is G83.5 in ICD-10-CA?
G83.5 sits under G83 Other paralytic syndromes, within G80-G83 Cerebral palsy and other paralytic syndromes, within Chapter 6: Diseases of the nervous system (G00-G99).
What coding notes apply to G83.5?
ICD-10-CA lists Note, Includes, Excludes notes for G83.5, 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.