DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

E05 Thyrotoxicosis [hyperthyroidism]

  • Header · not billable

E05 is not billable. The category heads 14 billable codes in FY2027, grouped under 7 subdivisions.

Index → code

  • Stokes' disease → E05.00
  • Plummer's disease → E05.20
  • Thyrotoxicosis (recurrent) → E05.90

Where it sits

  1. Chapter 4 Endocrine, nutritional and metabolic diseases (E00-E89)
  2. E00-E07 Disorders of thyroid gland (E00-E07)
  3. E05 Thyrotoxicosis [hyperthyroidism]
Billable codes
14
Subdivisions
7
CC / MCC codes
0 / 7
HCC V28 codes
0
New FY2027
0
Index entries
122

Codes in E05

  1. E05.0
    Thyrotoxicosis with diffuse goiter
    Header
    Inclusion terms 3

    Inclusion terms

    • Exophthalmic or toxic goiter NOS
    • Graves' disease
    • Toxic diffuse goiter
  2. E05.00
    Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm
    Billable
  3. E05.01
    Thyrotoxicosis with diffuse goiter with thyrotoxic crisis or storm
    BillableMCC
  4. E05.1
    Thyrotoxicosis with toxic single thyroid nodule
    Header
    Inclusion terms 1

    Inclusion terms

    • Thyrotoxicosis with toxic uninodular goiter
  5. E05.10
    Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm
    Billable
  6. E05.11
    Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm
    BillableMCC
  7. E05.2
    Thyrotoxicosis with toxic multinodular goiter
    Header
    Inclusion terms 1

    Inclusion terms

    • Toxic nodular goiter NOS
  8. E05.20
    Thyrotoxicosis with toxic multinodular goiter without thyrotoxic crisis or storm
    Billable
  9. E05.21
    Thyrotoxicosis with toxic multinodular goiter with thyrotoxic crisis or storm
    BillableMCC
  10. E05.3
    Thyrotoxicosis from ectopic thyroid tissue
    Header
  11. E05.30
    Thyrotoxicosis from ectopic thyroid tissue without thyrotoxic crisis or storm
    Billable
  12. E05.31
    Thyrotoxicosis from ectopic thyroid tissue with thyrotoxic crisis or storm
    BillableMCC
  13. E05.4
    Thyrotoxicosis factitia
    Header
  14. E05.40
    Thyrotoxicosis factitia without thyrotoxic crisis or storm
    Billable
  15. E05.41
    Thyrotoxicosis factitia with thyrotoxic crisis or storm
    BillableMCC
  16. E05.8
    Other thyrotoxicosis
    Header
    Inclusion terms 1

    Inclusion terms

    • Overproduction of thyroid-stimulating hormone
  17. E05.80
    Other thyrotoxicosis without thyrotoxic crisis or storm
    Billable
  18. E05.81
    Other thyrotoxicosis with thyrotoxic crisis or storm
    BillableMCC
  19. E05.9
    Thyrotoxicosis, unspecified
    Header
    Inclusion terms 1

    Inclusion terms

    • Hyperthyroidism NOS
  20. E05.90
    Thyrotoxicosis, unspecified without thyrotoxic crisis or storm
    Billable
  21. E05.91
    Thyrotoxicosis, unspecified with thyrotoxic crisis or storm
    BillableMCC

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

At E05

Excludes1

  • chronic thyroiditis with transient thyrotoxicosis (E06.2) E06.2
  • neonatal thyrotoxicosis (P72.1) P72.1

Notes that also apply

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

Index entries

  • Marsh's disease (exophthalmic goiter) → E05.00
  • Parry's disease or syndrome → E05.00
  • Parson's disease (exophthalmic goiter) → E05.00
  • Stokes' disease → E05.00
  • Plummer's disease → E05.20
  • Hyperthyroidism (latent) (pre-adult) (recurrent) → E05.90
  • Thyrotoxicosis (recurrent) → E05.90
  • Ophthalmoplegiaexophthalmic → E05.00
  • SyndromeBasedow's → E05.00
  • SyndromeFlajani (-Basedow) → E05.00
  • SyndromeParry's → E05.00
  • Marsh's disease (exophthalmic goiter)with storm → E05.01
  • Parry's disease or syndromewith thyroid storm → E05.01
  • Parson's disease (exophthalmic goiter)with thyroid storm → E05.01
  • Stokes' diseasewith thyroid storm → E05.01
  • Plummer's diseasewith thyroid storm → E05.21
  • Hyperthyroidism (latent) (pre-adult) (recurrent)due to ectopic thyroid tissue → E05.30
  • Thyrotoxicosis (recurrent)factitia → E05.40
  • Hyperthyroidism (latent) (pre-adult) (recurrent)specified NEC → E05.80
  • Cardiomyopathy (familial) (idiopathic)thyrotoxic → E05.90 [I43]
  • Myocardiopathy (congestive) (constrictive) (familial) (hypertrophic nonobstructive) (idiopathic) (infiltrative) (obstructive) (primary) (restrictive) (sporadic)thyrotoxic → E05.90 [I43]
  • Myxedema (adult) (idiocy) (infantile) (juvenile)circumscribed → E05.90
  • Myxedema (adult) (idiocy) (infantile) (juvenile)localized (pretibial) → E05.90
  • SyndromeLeopold-Levi's → E05.90
  • Thyrotoxicheart disease or failure → E05.90 [I43]
  • Thyrotoxicosis (recurrent)heart → E05.90 [I43]
  • Hyperthyroidism (latent) (pre-adult) (recurrent)withgoiter (diffuse) → E05.00
  • Thyrotoxicosis (recurrent)withgoiter (diffuse) → E05.00
  • Ophthalmoplegiaexophthalmicwith thyroid storm → E05.01
  • SyndromeBasedow'swith thyroid storm → E05.01
  • SyndromeFlajani (-Basedow)with thyroid storm → E05.01
  • SyndromeParry'swith thyroid storm → E05.01
  • Goiter (plunging) (substernal)uninodular (nontoxic)toxic or with hyperthyroidism → E05.10
  • Thyrotoxicosis (recurrent)withsingle thyroid nodule → E05.10
  • Goiter (plunging) (substernal)multinodular (cystic) (nontoxic)toxic or with hyperthyroidism → E05.20
  • Goiter (plunging) (substernal)nodular (nontoxic) (due to)toxic → E05.20
  • Nodule(s), nodularthyroid (cold) (gland) (nontoxic)with thyrotoxicosis → E05.20
  • Nodule(s), nodularthyroid (cold) (gland) (nontoxic)toxic or with hyperthyroidism → E05.20
  • Strumanodosa (simplex)toxic or with hyperthyroidism → E05.20
  • Strumanodosa (simplex)toxicosa → E05.20

82 more, longer entries are not listed; the search box finds them by word.

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

Hierarchy