G55.1 ICD-10-CA code: Nerve root and plexus compressions in intervertebral disc disorders
G55.1 is the ICD-10-CA code for “Nerve root and plexus compressions in intervertebral disc disorders” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
G55.1Nerve root and plexus compressions in intervertebral disc disorders
Short description: Nrv root plexus comprs I/V disc disrd
ICD-10-CA · Canada · Also written G551
Notes for G55.1
As CIHI prints them, with any note G55.1 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)From G50-G59 Nerve, nerve root and plexus disorders
- 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 G55.1 sits
- 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
- 2Block G50-G59Nerve, nerve root and plexus disorders
- 3Category G55Nerve root and plexus compressions in diseases classified elsewhere
- 4Valid code G55.1Nerve root and plexus compressions in intervertebral disc 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
What does ICD-10-CA code G55.1 mean?
G55.1 is the ICD-10-CA code for “Nerve root and plexus compressions in intervertebral disc disorders” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is G55.1 in ICD-10-CA?
G55.1 sits under G55 Nerve root and plexus compressions in diseases classified elsewhere, within G50-G59 Nerve, nerve root and plexus disorders, within Chapter 6: Diseases of the nervous system (G00-G99).
What coding notes apply to G55.1?
ICD-10-CA lists Excludes notes for G55.1, 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.