2020 ICD-10-CM Diagnosis Code E02

Subclinical iodine-deficiency hypothyroidism

    2016 2017 2018 2019 2020 Billable/Specific Code
  • E02 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM E02 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of E02 - other international versions of ICD-10 E02 may differ.
The following code(s) above E02 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to E02:
  • E00-E89
    2020 ICD-10-CM Range E00-E89

    Endocrine, nutritional and metabolic diseases

    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.
    Type 1 Excludes
    • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
    Endocrine, nutritional and metabolic diseases
Approximate Synonyms
  • Subclinical iodine deficiency hypothyroidism
ICD-10-CM E02 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 643 Endocrine disorders with mcc
  • 644 Endocrine disorders with cc
  • 645 Endocrine disorders without cc/mcc

Convert E02 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to E02:
  • Type 1 Excludes: E00
    , E01
    ICD-10-CM Diagnosis Code E00

    Congenital iodine-deficiency syndrome

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • subclinical iodine-deficiency hypothyroidism (E02)
    Use Additional
    • code (F70-F79) to identify associated intellectual disabilities.
    ICD-10-CM Diagnosis Code E01

    Iodine-deficiency related thyroid disorders and allied conditions

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • congenital iodine-deficiency syndrome (E00.-)
    • subclinical iodine-deficiency hypothyroidism (E02)

Diagnosis Index entries containing back-references to E02:
  • Hypothyroidism (acquired) E03.9
    ICD-10-CM Diagnosis Code E03.9

    Hypothyroidism, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Myxedema NOS
    • due to
      • iodine-deficiency, acquired E01.8
        ICD-10-CM Diagnosis Code E01.8

        Other iodine-deficiency related thyroid disorders and allied conditions

          2016 2017 2018 2019 2020 Billable/Specific Code
        Applicable To
        • Acquired iodine-deficiency hypothyroidism NOS
        • subclinical E02
    • iodine-deficiency (acquired) E01.8
      ICD-10-CM Diagnosis Code E01.8

      Other iodine-deficiency related thyroid disorders and allied conditions

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Acquired iodine-deficiency hypothyroidism NOS
      • subclinical E02
    • subclinical, iodine-deficiency related E02

ICD-10-CM Codes Adjacent To E02
E00 Congenital iodine-deficiency syndrome
E00.0 Congenital iodine-deficiency syndrome, neurological type
E00.1 Congenital iodine-deficiency syndrome, myxedematous type
E00.2 Congenital iodine-deficiency syndrome, mixed type
E00.9 Congenital iodine-deficiency syndrome, unspecified
E01 Iodine-deficiency related thyroid disorders and allied conditions
E01.0 Iodine-deficiency related diffuse (endemic) goiter
E01.1 Iodine-deficiency related multinodular (endemic) goiter
E01.2 Iodine-deficiency related (endemic) goiter, unspecified
E01.8 Other iodine-deficiency related thyroid disorders and allied conditions
E02 Subclinical iodine-deficiency hypothyroidism
E03 Other hypothyroidism
E03.0 Congenital hypothyroidism with diffuse goiter
E03.1 Congenital hypothyroidism without goiter
E03.2 Hypothyroidism due to medicaments and other exogenous substances
E03.3 Postinfectious hypothyroidism
E03.4 Atrophy of thyroid (acquired)
E03.5 Myxedema coma
E03.8 Other specified hypothyroidism
E03.9 Hypothyroidism, unspecified
E04 Other nontoxic goiter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.