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G90.0 ICD-10-CA code: Idiopathic peripheral autonomic neuropathy

G90.0 is the ICD-10-CA code for “Idiopathic peripheral autonomic neuropathy” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

G90.0

Idiopathic peripheral autonomic neuropathy

Short description: Idiopath peripheral autonomic neuropathy

ICD-10-CA · Canada · Also written G900

Index terms

Entries in CIHI’s alphabetical index that lead to G90.0. Searching the index by the condition the note names is how coders reach this code.

  • Syncope, carotid sinus
  • Syndrome, carotid, sinus
  • Faciocephalalgia, autonomic
  • Carotid body or sinus syndrome
  • Sensitive, sensitivity, carotid sinus
  • Insufficiency, insufficient, idiopathic autonomic
  • Neuropathy, neuropathic, peripheral (nerve), autonomic, idiopathic
  • Hypersensitive, hypersensitiveness, hypersensitivity, carotid sinus

Notes for G90.0

As CIHI prints them, with any note G90.0 takes from the headings above it.

Includes

  • Carotid sinus syncope

Excludes

Conditions classified elsewhere.

  • Dysfunction of autonomic nervous system due to alcohol (G31.2)From G90 Disorders of autonomic 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 G90.0 sits

  1. 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
  2. 2Block G90-G99Other disorders of the nervous system
  3. 3Category G90Disorders of autonomic nervous system
  4. 4Valid code G90.0Idiopathic peripheral autonomic neuropathy

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.

See G90.0 in the CIHI source

Frequently asked questions

What does ICD-10-CA code G90.0 mean?

G90.0 is the ICD-10-CA code for “Idiopathic peripheral autonomic neuropathy” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is G90.0 in ICD-10-CA?

G90.0 sits under G90 Disorders of autonomic nervous system, within G90-G99 Other disorders of the nervous system, within Chapter 6: Diseases of the nervous system (G00-G99).

What coding notes apply to G90.0?

ICD-10-CA lists Includes, Excludes notes for G90.0, 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.

Codes beside G90.0

G90.1Familial dysautonomia [Riley-Day]G90.2Horner's syndromeG90.4Autonomic dysreflexiaG90.5Complex regional pain syndrome, type IG90.6Complex regional pain syndrome, type IIG90.7Complex regional pain syndrome, other and unspecified typeG90.8Other disorders of autonomic nervous systemG90.9Disorder of autonomic nervous system, unspecified