ICD-10-CM 2027
ICD-10 code for thyroiditis de quervain's
From the official ICD-10-CM alphabetic index entry “De Quervain's › thyroiditis (subacute granulomatous thyroiditis)”. Page updated September 29, 2026.
About coding thyroiditis de quervain's
The ICD-10-CM code for thyroiditis de quervain's is E06.1 (Subacute thyroiditis).
Within E06 (thyroiditis), E06.1 is specifically for subacute thyroiditis. Related codes cover acute thyroiditis (E06.0), chronic thyroiditis with transient thyrotoxicosis (E06.2), autoimmune thyroiditis (E06.3), drug-induced thyroiditis (E06.4), other chronic thyroiditis (E06.5) and unspecified (E06.9).
Don't report E06.1 together with the conditions in its Excludes1 note: autoimmune thyroiditis (E06.3).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for E06.1)
- autoimmune thyroiditis (E06.3)
Common questions about thyroiditis de quervain's ICD-10 codes
What is the ICD-10 code for thyroiditis de quervain's?
- E06.1 — Subacute thyroiditis.
Is E06.1 billable?
- Yes. E06.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E06.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E06.1 as a principal diagnosis.
Is E06.1 a CC or MCC?
- No. E06.1 is neither a CC nor an MCC under MS-DRG v44.0.