2020 ICD-10-CM Diagnosis Code E06.3

Autoimmune thyroiditis

    2016 2017 2018 2019 2020 Billable/Specific Code
  • E06.3 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 E06.3 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of E06.3 - other international versions of ICD-10 E06.3 may differ.
Applicable To
  • Hashimoto's thyroiditis
  • Hashitoxicosis (transient)
  • Lymphadenoid goiter
  • Lymphocytic thyroiditis
  • Struma lymphomatosa
The following code(s) above E06.3 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 E06.3:
  • 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
  • E06
    ICD-10-CM Diagnosis Code E06

    Thyroiditis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • postpartum thyroiditis (O90.5)
    Thyroiditis
Approximate Synonyms
  • Fibrous autoimmune thyroiditis
  • Hashimoto thyroiditis
  • Thyroiditis (inflammation of thyroid), hashimotos
  • Thyroiditis, autoimmune
  • Thyroiditis, fibrous autoimmune
Clinical Information
  • An autoimmune condition of the thyroid gland (a gland located beneath the larynx). It is caused by the formation of antibodies that attack the thyroid gland and it usually causes hypothyroidism (too little thyroid hormone). Symptoms include fatigue, weight gain, constipation, dry skin, depression, and the inability to exercise. It is more common in females and can run in families.
  • An autoimmune disorder caused by the production of autoantibodies against thyroid tissue. There is progressive destruction of the thyroid follicles leading to hypothyroidism.
  • An inflammatory disorder that affects the thyroid gland. It is characterized by the infiltration of the thyroid parenchyma by lymphocytes. It includes hashimoto thyroiditis and subacute lymphocytic thyroiditis.
  • Chronic autoimmune thyroiditis, characterized by the presence of high serum thyroid autoantibodies; goiter; and hypothyroidism.
  • Diffuse infiltration of the thyroid gland with lymphocytes, resulting in diffuse goiter, progressive destruction of the parenchyma and hypothyroidism.
  • Inflammatory disease of the thyroid gland due to autoimmune responses leading to lymphocytic infiltration of the gland. It is characterized by the presence of circulating thyroid antigen-specific t-cells and thyroid autoantibodies. The clinical signs can range from hypothyroidism to thyrotoxicosis depending on the type of autoimmune thyroiditis.
  • Progressive enlargement of the thyroid gland, often associated with hypothyroidism.
ICD-10-CM E06.3 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 011 Tracheostomy for face, mouth & neck diagnoses or laryngectomy with mcc
  • 012 Tracheostomy for face, mouth & neck diagnoses or laryngectomy with cc
  • 013 Tracheostomy for face, mouth & neck diagnoses or laryngectomy without cc/mcc
  • 643 Endocrine disorders with mcc
  • 644 Endocrine disorders with cc
  • 645 Endocrine disorders without cc/mcc

Convert E06.3 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 E06.3:
  • Type 1 Excludes: E06.1
    , E06.2
    ICD-10-CM Diagnosis Code E06.1

    Subacute thyroiditis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • de Quervain thyroiditis
    • Giant-cell thyroiditis
    • Granulomatous thyroiditis
    • Nonsuppurative thyroiditis
    • Viral thyroiditis
    Type 1 Excludes
    • autoimmune thyroiditis (E06.3)
    ICD-10-CM Diagnosis Code E06.2

    Chronic thyroiditis with transient thyrotoxicosis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Type 1 Excludes
    • autoimmune thyroiditis (E06.3)

Diagnosis Index entries containing back-references to E06.3:
  • Autoimmune
    • thyroiditis E06.3
  • Disease, diseased - see also Syndrome
    • autoimmune (systemic) M35.9
      ICD-10-CM Diagnosis Code M35.9

      Systemic involvement of connective tissue, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Autoimmune disease (systemic) NOS
      • Collagen (vascular) disease NOS
      • thyroid E06.3
    • Hashimoto's E06.3 (struma lymphomatosa)
  • Goiter (plunging) (substernal) E04.9
    ICD-10-CM Diagnosis Code E04.9

    Nontoxic goiter, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Goiter NOS
    • Nodular goiter (nontoxic) NOS
    • lymphadenoid E06.3
  • Hashimoto's disease or thyroiditis E06.3
  • Hashitoxicosis E06.3 (transient)
  • Lymphadenoid goiter E06.3
  • Struma - see also Goiter
    • Hashimoto E06.3
    • lymphomatosa E06.3
  • Thyroiditis E06.9
    ICD-10-CM Diagnosis Code E06.9

    Thyroiditis, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    • chronic (nonspecific) (sclerosing) E06.5
      ICD-10-CM Diagnosis Code E06.5

      Other chronic thyroiditis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic fibrous thyroiditis
      • Chronic thyroiditis NOS
      • Ligneous thyroiditis
      • Riedel thyroiditis
      • lymphadenoid E06.3
      • lymphocytic E06.3
      • lymphoid E06.3
    • autoimmune E06.3
    • Hashimoto's E06.3 (struma lymphomatosa)
    • lymphocytic E06.3 (chronic)
    • lymphoid E06.3
    • lymphomatous E06.3

ICD-10-CM Codes Adjacent To E06.3
E05.8 Other thyrotoxicosis
E05.80 …… without thyrotoxic crisis or storm
E05.81 …… with thyrotoxic crisis or storm
E05.9 Thyrotoxicosis, unspecified
E05.90 …… without thyrotoxic crisis or storm
E05.91 …… with thyrotoxic crisis or storm
E06 Thyroiditis
E06.0 Acute thyroiditis
E06.1 Subacute thyroiditis
E06.2 Chronic thyroiditis with transient thyrotoxicosis
E06.3 Autoimmune thyroiditis
E06.4 Drug-induced thyroiditis
E06.5 Other chronic thyroiditis
E06.9 Thyroiditis, unspecified
E07 Other disorders of thyroid
E07.0 Hypersecretion of calcitonin
E07.1 Dyshormogenetic goiter
E07.8 Other specified disorders of thyroid
E07.81 Sick-euthyroid syndrome
E07.89 Other specified disorders of thyroid
E07.9 Disorder of thyroid, unspecified

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