Thyroiditis, unspecified

This code represents inflammation of the thyroid gland when the specific type or cause is not documented. It indicates a general diagnosis of thyroiditis without further detail regarding its etiology (e.g., autoimmune, infectious, subacute, chronic).

Use this code when the physician's documentation explicitly states "thyroiditis, unspecified" or "thyroiditis NOS." It is appropriate when the clinical picture suggests thyroid inflammation but diagnostic workup is incomplete or the specific type cannot be determined.

• Avoid using this code if more specific documentation of the type of thyroiditis (e.g., Hashimoto's, subacute, acute) is available.
• Query the provider for clarification if "thyroiditis" is documented without further specificity, to potentially assign a more precise code.
• This code should be used as a last resort when no other specific thyroiditis code can be assigned.