ICD Code E05.01

ICD code E05.01 is thyrotoxicosis with diffuse goiter accompanied by a thyrotoxic crisis or storm, indicating an overactive thyroid gland with an enlarged thyroid and a life-threatening worsening of symptoms.

1. Presence of thyrotoxicosis (elevated thyroid hormone levels causing clinical symptoms)

2. Diffuse enlargement of the thyroid gland (goiter) on physical examination or imaging

3. Acute onset of thyrotoxic crisis or storm, characterized by severe symptoms such as high fever, tachycardia, agitation, delirium, nausea, vomiting, diarrhea, dehydration, or heart failure

4. Laboratory confirmation of suppressed TSH and elevated free T4 and/or T3 levels

5. Exclusion of other causes of hypermetabolic state or acute illness

Relevant CPT codes for ICD code E05.01 include:

- 82947 (Glucose; quantitative, blood [except reagent strip])

- 84436 (Thyroxine; total)

- 84439 (Thyroxine; free)

- 84443 (Thyroid stimulating hormone [TSH])

- 84479 (Thyroid hormone [T3 or T4]; reverse T3)

- 84480 (Triiodothyronine; total)

- 84481 (Triiodothyronine; free)

- 80091 (Thyroid panel)

- 96365 (Intravenous infusion, for therapy, prophylaxis, or diagnosis; initial, up to 1 hour)

- 96372 (Therapeutic, prophylactic, or diagnostic injection; subcutaneous or intramuscular)

- 99221–99223 (Initial hospital care, per day, for the evaluation and management of a patient)

- 99231–99233 (Subsequent hospital care, per day, for the evaluation and management of a patient)

- 99291 (Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes)

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