8C01

ICD-11 MMS 2026-01

Inflammatory polyneuropathy

Description

Acquired inflammatory peripheral neuropathies are of a presumed immune etiology and are classified on the basis of their clinical course: acute inflammatory demyelinating polyneuropathy (AIDP or Guillain-Barré syndrome) with the motor deficit reaching a maximal level by 28 days, and chronic inflammatory demyelinating polyneuropathy (CIDP) which has a slowly progressive course of two or more months or a relapsing remitting course. There are many variants of AIDP and CIDP.

Exclusions from above levels

  • FB56 – neuritis NOS
  • http://id.who.int/icd/entity/114997967 – Injury of nerves or lumbar spinal cord at abdomen, lower back or pelvis level
  • http://id.who.int/icd/entity/1454363907 – Injury of nerves or spinal cord at neck level
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  • NA04 – Injury of cranial nerves
  • NC14 – Injury of nerves at shoulder or upper arm level
  • NC34 – Injury of nerves at forearm level
  • NC55 – Injury of nerves at wrist or hand level
  • NC74 – Injury of nerves at hip or thigh level
  • NC94 – Injury of nerves at lower leg level
  • ND15 – Injury of nerves at ankle or foot level
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 22 – Injury, poisoning or certain other consequences of external causes

Child codes

  • 8C01.0 – Acute inflammatory demyelinating polyneuropathy
  • 8C01.1 – Post vaccinal neuropathy
  • 8C01.2 – Subacute inflammatory demyelinating polyneuropathy
  • 8C01.3 – Chronic inflammatory demyelinating polyneuropathy
  • 8C01.Y – Other specified inflammatory polyneuropathy
  • 8C01.Z – Inflammatory polyneuropathy, unspecified

Sibling codes

  • 8C00 – Idiopathic progressive neuropathy
  • 8C03 – Other secondary polyneuropathy
  • 8C0Y – Other specified polyneuropathy
  • 8C0Z – Polyneuropathy, unspecified

Foundation entity

Inflammatory polyneuropathy – http://id.who.int/icd/entity/1719029386

Allowed postcoordination axes

Part of: 08: Diseases of the nervous system