2020 ICD-10-CM Diagnosis Code E06.1

Subacute thyroiditis

    2016 2017 2018 2019 2020 Billable/Specific Code
  • E06.1 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 E06.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of E06.1 - other international versions of ICD-10 E06.1 may differ.
Applicable To
  • de Quervain thyroiditis
  • Giant-cell thyroiditis
  • Granulomatous thyroiditis
  • Nonsuppurative thyroiditis
  • Viral thyroiditis
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as E06.1. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • autoimmune thyroiditis (
    ICD-10-CM Diagnosis Code E06.3

    Autoimmune thyroiditis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Hashimoto's thyroiditis
    • Hashitoxicosis (transient)
    • Lymphadenoid goiter
    • Lymphocytic thyroiditis
    • Struma lymphomatosa
    E06.3
    )
The following code(s) above E06.1 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 E06.1:
  • 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
  • Thyroiditis, subacute
Clinical Information
  • Self-limited inflammation of the thyroid gland characterized by the presence of multinucleated giant cells. Patients present with neck pain, often associated with fever and dysphagia. The clinical course includes an initial phase of hyperthyroidism, followed by a phase of hypothyroidism, and eventually a return to normal thyroid function.
  • Spontaneously remitting inflammatory condition of the thyroid gland, characterized by fever; muscle weakness; sore throat; severe thyroid pain; and an enlarged damaged gland containing giant cells. The disease frequently follows a viral infection.
ICD-10-CM E06.1 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 E06.1 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

Diagnosis Index entries containing back-references to E06.1:
  • De Quervain's
    • thyroiditis E06.1 (subacute granulomatous thyroiditis)
  • Disease, diseased - see also Syndrome
    • de Quervain's (tendon sheath) M65.4
      ICD-10-CM Diagnosis Code M65.4

      Radial styloid tenosynovitis [de Quervain]

        2016 2017 2018 2019 2020 Billable/Specific Code
      • thyroid E06.1 (subacute granulomatous thyroiditis)
  • Quervain's disease M65.4
    ICD-10-CM Diagnosis Code M65.4

    Radial styloid tenosynovitis [de Quervain]

      2016 2017 2018 2019 2020 Billable/Specific Code
    • thyroid E06.1
  • Thyroiditis E06.9
    ICD-10-CM Diagnosis Code E06.9

    Thyroiditis, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    • de Quervain's E06.1
    • giant-cell E06.1 (follicular)
    • granulomatous E06.1 (de Quervain) (subacute)
    • nonsuppurative E06.1
    • pseudotuberculous E06.1
    • subacute E06.1 (granulomatous)
    • viral E06.1

ICD-10-CM Codes Adjacent To E06.1
E05.40 …… without thyrotoxic crisis or storm
E05.41 …… with thyrotoxic crisis or storm
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

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