DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

G61 Inflammatory polyneuropathy

  • Header · not billable

G61 is not billable. The category heads 6 billable codes in FY2027, grouped under 4 subdivisions.

Index → code

  • Miller Fisher syndrome → G61.0
  • Landry's disease or paralysis → G61.0
  • Encephalomyeloradiculitis (acute) → G61.0

Where it sits

  1. Chapter 6 Diseases of the nervous system (G00-G99)
  2. G60-G65 Polyneuropathies and other disorders of the peripheral nervous system (G60-G65)
  3. G61 Inflammatory polyneuropathy
Billable codes
6
Subdivisions
4
CC / MCC codes
2 / 0
HCC V28 codes
2
New FY2027
0
Index entries
40

Codes in G61

  1. G61.0
    Guillain-Barre syndrome
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Acute (post-)infective polyneuritis
    • Miller Fisher Syndrome
  2. G61.1
    Serum neuropathy
    Billable
    Use additional code 1

    Use additional code

    • code for adverse effect, if applicable, to identify serum (T50.-) T50
  3. G61.8
    Other inflammatory polyneuropathies
    Header
  4. G61.81
    Chronic inflammatory demyelinating polyneuritis
    BillableCC193
  5. G61.82
    Multifocal motor neuropathy
    Billable193
    Inclusion terms 1

    Inclusion terms

    • MMN
  6. G61.89
    Other inflammatory polyneuropathies
    Billable
  7. G61.9
    Inflammatory polyneuropathy, unspecified
    Billable

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

Notes that also apply

Block G60-G65 instructions (Excludes1 4): printed on the block page.

Chapter 6 instructions (Excludes2 8): printed on the chapter 6 page.

Index entries

  • Barré-Guillain disease or syndrome → G61.0
  • Encephalomyeloradiculitis (acute) → G61.0
  • Encephalomyeloradiculoneuritis (acute) (Guillain-Barré) → G61.0
  • Guillain-Barré disease or syndrome → G61.0
  • Landry-Guillain-Barré, syndrome or paralysis → G61.0
  • Landry's disease or paralysis → G61.0
  • Miller Fisher syndrome → G61.0
  • Polyradiculoneuropathy (acute) (postinfective) (segmentally demyelinating) → G61.0
  • CIDP (chronic inflammatory demyelinating polyneuropathy ) → G61.81
  • MMN (multifocal motor neuropathy) → G61.82
  • Disease, diseasedGuillain-Barré → G61.0
  • Disease, diseasedLandry's → G61.0
  • Neuritis (rheumatoid)infectious (multiple) NEC → G61.0
  • Neuromyelitisascending → G61.0
  • Ophthalmoplegiaataxia-areflexia → G61.0
  • Paralysis, paralytic (complete) (incomplete)ascending (spinal), acute → G61.0
  • Paralysis, paralytic (complete) (incomplete)Landry's → G61.0
  • Polyneuritis, polyneuriticacute (post-)infective → G61.0
  • Polyneuritis, polyneuriticfebrile, acute → G61.0
  • Polyneuritis, polyneuriticidiopathic, acute → G61.0
  • Polyneuritis, polyneuriticinfective (acute) → G61.0
  • Polyneuritis, polyneuriticpostinfective (acute) → G61.0
  • SyndromeBarré-Guillain → G61.0
  • SyndromeFisher's → G61.0
  • SyndromeGuillain-Barré (-Strohl) → G61.0
  • SyndromeMiller-Fisher → G61.0
  • Neuropathy, neuropathicserum → G61.1
  • Serumneuropathy → G61.1
  • Polyneuritis, polyneuriticdemyelinating, chronic inflammatory (CIDP) → G61.81
  • Polyneuritis, polyneuriticinflammatory, chronic demyelinating (CIDP) → G61.81
  • Polyneuropathy (peripheral)demyelinating, chronic inflammatory (CIDP) → G61.81
  • Neuropathy, neuropathicmultifocal motor (MMN) → G61.82
  • Polyneuropathy (peripheral)inflammatory → G61.9
  • Neuritis (rheumatoid)multipleinfective, acute → G61.0
  • Paralysis, paralytic (complete) (incomplete)spinal (cord)ascending acute → G61.0
  • Sclerosis, scleroticspinal (cord) (progressive)ascending → G61.0
  • Polyneuropathy (peripheral)in (due to)antitetanus serum → G61.1
  • Polyneuropathy (peripheral)in (due to)serum → G61.1
  • Polyneuropathy (peripheral)inflammatorychronic demyelinating (CIDP) → G61.81
  • Polyneuropathy (peripheral)inflammatoryspecified NEC → G61.89

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy