DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Block · Chapter 4

E20-E35 Disorders of other endocrine glands (E20-E35)

Block E20-E35 groups 15 categories with 99 billable codes in FY2027.

Where it sits

  1. Chapter 4 Endocrine, nutritional and metabolic diseases (E00-E89)
  2. E20-E35 Disorders of other endocrine glands (E20-E35)

Neighbouring blocks

Categories
15
Billable codes
99
CC codes
23
MCC codes
0
HCC V28 codes
14
New FY2027
0

Categories in E20-E35

  • E20

    Hypoparathyroidism

    Hypoparathyroidism → E20.9

    • 9 billable codes
  • E21

    Hyperparathyroidism and other disorders of parathyroid gland

    Hyperparathyroidism → E21.3

    • 6 billable codes
  • E22

    Hyperfunction of pituitary gland

    Hyperpituitarism → E22.9

    • 5 billable codes
    • 4 CC
    • 1 with HCC
  • E23

    Hypofunction and other disorders of the pituitary gland

    Dyspituitarism → E23.3

    • 6 billable codes
    • 2 CC
  • E24

    Cushing's syndrome

    Hypercortisonism → E24.2

    • 7 billable codes
    • 6 CC
    • 1 with HCC
  • E25

    Adrenogenital disorders

    Virilism (adrenal) → E25.9

    • 3 billable codes
  • E26

    Hyperaldosteronism

    Aldosteronism → E26.9

    • 7 billable codes
  • E27

    Other disorders of adrenal gland

    Hyperadrenalism → E27.5

    • 9 billable codes
    • 7 CC
    • 1 with HCC
  • E28

    Ovarian dysfunction

    Hyperovarism → E28.8

    • 8 billable codes
  • E29

    Testicular dysfunction

    Eunuchoidism → E29.1

    • 4 billable codes
  • E30

    Disorders of puberty, not elsewhere classified

    Pubertas praecox → E30.1

    • 4 billable codes
  • E31

    Polyglandular dysfunction

    Sipple's syndrome → E31.22

    • 8 billable codes
    • 8 with HCC
  • E32

    Diseases of thymus

    Thymitis → E32.8

    • 4 billable codes
    • 1 CC
  • E34

    Other endocrine disorders

    Dwarfism → E34.328

    • 18 billable codes
    • 3 CC
    • 3 with HCC
  • E35

    Disorders of endocrine glands in diseases classified elsewhere

    –

    • Billable, no subdivisions

Index main terms

+202 more main terms; the search box finds them by word.

Block instructions

Excludes1

  • galactorrhea (N64.3) N64.3
  • gynecomastia (N62) N62

Notes that also apply

Chapter 4 instructions (Notes 1, Excludes1 1): printed on the chapter 4 page.