E03.9

Hypothyroidism, unspecified

Billable / specific

E03.9 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Myxedema NOS

Includes (from E03)

  • Note: All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

Excludes1

Not coded here — never report together with this code.

  • transitory endocrine and metabolic disorders specific to newborn (P70-P74) (from E03)
  • iodine-deficiency related hypothyroidism (E00-E02) (from E03)
  • postprocedural hypothyroidism (E89.0) (from E03)

Also known as

  • Myxedema NOS
  • Anemia, due to myxedema
  • Arthritis, arthritic, in hypothyroidism NEC
  • Arthropathy, in hypothyroidism
  • Ataxia, ataxy, ataxic, cerebellar, in myxedema
  • Atrophy, atrophic, systemic affecting central nervous system, in myxedema
  • Cataract, myxedema
  • Degeneration, degenerative, brain, in myxedema
  • Dementia, in hypothyroidism, acquired
  • Dementia, in hypothyroidism, acquired, with behavioral disturbance
  • Hoffmann's syndrome
  • Hypothyroidism
  • Insufficiency, insufficient, thyroid
  • Myopathy, in hypothyroidism
  • Myopathy, in myxedema
  • Myxedema

Parent code

  • E03Other hypothyroidismHeader

Related codes

  • E03.0Congenital hypothyroidism with diffuse goiterBillable
  • E03.1Congenital hypothyroidism without goiterBillable
  • E03.2Hypothyroidism due to medicaments and other exogenous substancesBillable
  • E03.3Postinfectious hypothyroidismBillable
  • E03.4Atrophy of thyroid (acquired)Billable
  • E03.5Myxedema comaBillable
  • E03.8Other specified hypothyroidismBillable

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