G51 ICD-10-CA category: Facial nerve disorders
G51 isn’t a code on its own. Choose one of the 7 codes beneath it, the one the documentation supports.
Official description
G51Facial nerve disorders
ICD-10-CA · Canada
Codes in G51
G51 isn’t a code on its own. Open the code that matches what the note documents.
Notes for G51
As CIHI prints them, with any note G51 takes from the headings above it.
Includes
- Disorders of 7th cranial nerve
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 G51 sits
- 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
- 2Block G50-G59Nerve, nerve root and plexus disorders
- 3Category G51Facial nerve 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 G51 a valid ICD-10-CA code?
No. G51 (Facial nerve disorders) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 7 codes; record the one the documentation supports.
Where is G51 in ICD-10-CA?
G51 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 G51?
ICD-10-CA lists Includes, Excludes notes for G51, 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 G51
View G50-G59G50Disorders of trigeminal nerveG52Disorders of other cranial nervesG53Cranial nerve disorders in diseases classified elsewhereG54Nerve root and plexus disordersG55Nerve root and plexus compressions in diseases classified elsewhereG56Mononeuropathies of upper limbG57Mononeuropathies of lower limbG58Other mononeuropathiesG59Mononeuropathy in diseases classified elsewhere