G56 ICD-10-CA category: Mononeuropathies of upper limb
G56 isn’t a code on its own. Choose one of the 6 codes beneath it, the one the documentation supports.
Official description
G56Mononeuropathies of upper limb
ICD-10-CA · Canada
Codes in G56
G56 isn’t a code on its own. Open the code that matches what the note documents.
Notes for G56
As CIHI prints them, with any note G56 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Current traumatic nerve disorder - see nerve injury by body region
- 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 G56 sits
- 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
- 2Block G50-G59Nerve, nerve root and plexus disorders
- 3Category G56Mononeuropathies of upper limb
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 G56 a valid ICD-10-CA code?
No. G56 (Mononeuropathies of upper limb) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 6 codes; record the one the documentation supports.
Where is G56 in ICD-10-CA?
G56 sits under G50-G59 Nerve, nerve root and plexus disorders, within Chapter 6: Diseases of the nervous system (G00-G99).
What coding notes apply to G56?
ICD-10-CA lists Excludes notes for G56, 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 G56
View G50-G59G50Disorders of trigeminal nerveG51Facial nerve disordersG52Disorders of other cranial nervesG53Cranial nerve disorders in diseases classified elsewhereG54Nerve root and plexus disordersG55Nerve root and plexus compressions in diseases classified elsewhereG57Mononeuropathies of lower limbG58Other mononeuropathiesG59Mononeuropathy in diseases classified elsewhere