DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Block · Chapter 6

G70-G73 Diseases of myoneural junction and muscle (G70-G73)

Block G70-G73 groups 4 categories with 48 billable codes in FY2027.

Where it sits

  1. Chapter 6 Diseases of the nervous system (G00-G99)
  2. G70-G73 Diseases of myoneural junction and muscle (G70-G73)

Neighbouring blocks

Categories
4
Billable codes
48
CC codes
13
MCC codes
1
HCC V28 codes
32
New FY2027
0

Categories in G70-G73

  • G70

    Myasthenia gravis and other myoneural disorders

    Myasthenia → G70.9

    • 8 billable codes
    • 2 CC
    • 1 MCC
    • 8 with HCC
  • G71

    Primary disorders of muscles

    Pseudomyotonia → G71.19

    • 28 billable codes
    • 5 CC
    • 21 with HCC
  • G72

    Other and unspecified myopathies

    Myopathy → G72.9

    • 9 billable codes
    • 4 CC
    • 1 with HCC
  • G73

    Disorders of myoneural junction and muscle in diseases classified elsewhere

    SyndromeLambert-Eatoninneoplastic disease → G73.1

    • 3 billable codes
    • 2 CC
    • 2 with HCC

Index main terms

  • Dystrophy, dystrophia → G71 (111 entries)
  • Myopathy → G71, G72 (41 entries)
  • Disease, diseased → G70, G71, G72 (23 entries)
  • Paralysis, paralytic (complete) (incomplete) → G70, G71, G72 (15 entries)
  • Syndrome → G70, G71, G73 (14 entries)
  • Disorder (of) → G70, G71 (9 entries)
  • Myasthenia → G70 (9 entries)
  • Myotonia (acquisita) (intermittens) → G71 (9 entries)
  • Atrophy, atrophic (of) → G71 (6 entries)
  • Sarcoglycanopathy → G71 (5 entries)
  • Calpainopathy (primary) → G71 (3 entries)
  • Cataract (cortical) (immature) (incipient) → G71 (3 entries)
  • Erb-Goldflam disease or syndrome → G70 (3 entries)
  • Goldflam-Erb disease or syndrome → G70 (3 entries)
  • Becker's → G71 (2 entries)

+35 more main terms; the search box finds them by word.

Block instructions

Notes that also apply

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