DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

E01 Iodine-deficiency related thyroid disorders and allied conditions

  • Header · not billable

E01 is not billable. The category heads 4 billable codes in FY2027: the 4 codes directly below it.

Index → code

  • Thyromegaly → E01.0
  • Hypothyroidism (acquired)iodine-deficiency (acquired) → E01.8
  • Goiter (plunging) (substernal)endemic (iodine-deficiency) → E01.2

Where it sits

  1. Chapter 4 Endocrine, nutritional and metabolic diseases (E00-E89)
  2. E00-E07 Disorders of thyroid gland (E00-E07)
  3. E01 Iodine-deficiency related thyroid disorders and allied conditions
Billable codes
4
Subdivisions
4
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
20

Codes in E01

  1. E01.0
    Iodine-deficiency related diffuse (endemic) goiter
    Billable
  2. E01.1
    Iodine-deficiency related multinodular (endemic) goiter
    Billable
    Inclusion terms 1

    Inclusion terms

    • Iodine-deficiency related nodular goiter
  3. E01.2
    Iodine-deficiency related (endemic) goiter, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endemic goiter NOS
  4. E01.8
    Other iodine-deficiency related thyroid disorders and allied conditions
    Billable
    Inclusion terms 1

    Inclusion terms

    • Acquired iodine-deficiency hypothyroidism NOS

Sources of each column.

Instructions

At E01

Excludes1

  • congenital iodine-deficiency syndrome (E00.-) E00
  • subclinical iodine-deficiency hypothyroidism (E02) E02

Notes that also apply

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

Index entries

  • Thyromegaly → E01.0
  • Goiter (plunging) (substernal)endemic (iodine-deficiency) → E01.2
  • Goiter (plunging) (substernal)iodine-deficiency (endemic) → E01.2
  • Hypothyroidism (acquired)iodine-deficiency (acquired) → E01.8
  • Goiter (plunging) (substernal)endemic (iodine-deficiency)diffuse → E01.0
  • Goiter (plunging) (substernal)iodine-deficiency (endemic)diffuse → E01.0
  • Goiter (plunging) (substernal)cysticdue to iodine-deficiency → E01.1
  • Goiter (plunging) (substernal)endemic (iodine-deficiency)multinodular → E01.1
  • Goiter (plunging) (substernal)iodine-deficiency (endemic)multinodular → E01.1
  • Goiter (plunging) (substernal)iodine-deficiency (endemic)nodular → E01.1
  • Goiter (plunging) (substernal)nodular (nontoxic) (due to)endemic → E01.1
  • Goiter (plunging) (substernal)nodular (nontoxic) (due to)iodine-deficiency → E01.1
  • Goiter (plunging) (substernal)due toiodine-deficiency (endemic) → E01.2
  • Strumanodosa (simplex)endemic → E01.2
  • Disorder (of)thyroid (gland)iodine-deficiency related → E01.8
  • Hypothyroidism (acquired)due toiodine-deficiency, acquired → E01.8
  • Strumanodosa (simplex)endemicmultinodular → E01.1
  • Strumanodosa (simplex)multinodulariodine-deficiency related → E01.1
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)hypothyroidism, acquireddue to iodine deficiency → E01.8 [F02.80]
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)hypothyroidism, acquireddue to iodine deficiencywith behavioral disturbance → E01.8 [F02.81-]

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

Hierarchy