DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Block · Chapter 6

G50-G59 Nerve, nerve root and plexus disorders (G50-G59)

Block G50-G59 groups 10 categories with 106 billable codes in FY2027.

Where it sits

  1. Chapter 6 Diseases of the nervous system (G00-G99)
  2. G50-G59 Nerve, nerve root and plexus disorders (G50-G59)

Neighbouring blocks

Categories
10
Billable codes
106
CC codes
0
MCC codes
0
HCC V28 codes
2
New FY2027
0

Categories in G50-G59

  • G50

    Disorders of trigeminal nerve

    Auriculotemporal syndrome → G50.8

    • 4 billable codes
  • G51

    Facial nerve disorders

    Myokymia, facial → G51.4

    • 10 billable codes
  • G52

    Disorders of other cranial nerves

    Vagotonia → G52.2

    • 7 billable codes
  • G53

    Cranial nerve disorders in diseases classified elsewhere

    –

    • Billable, no subdivisions
  • G54

    Nerve root and plexus disorders

    Wright's syndrome → G54.0

    • 10 billable codes
    • 2 with HCC
  • G55

    Nerve root and plexus compressions in diseases classified elsewhere

    –

    • Billable, no subdivisions
  • G56

    Mononeuropathies of upper limb

    Causalgia (upper limb) → G56.4-

    • 28 billable codes
  • G57

    Mononeuropathies of lower limb

    Meralgia paresthetica → G57.1-

    • 40 billable codes
  • G58

    Other mononeuropathies

    Neuronitis → G58.9

    • 4 billable codes
  • G59

    Mononeuropathy in diseases classified elsewhere

    Mononeuropathyin diseases classified elsewhere → G59

    • Billable, no subdivisions

Index main terms

+41 more main terms; the search box finds them by word.

Block instructions

Excludes1

  • current traumatic nerve, nerve root and plexus disorders - see Injury, nerve by body region
  • neuralgia NOS (M79.2) M79.2
  • neuritis NOS (M79.2) M79.2
  • peripheral neuritis in pregnancy (O26.82-) O26.82
  • radiculitis NOS (M54.1-) M54.1

Notes that also apply

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