Cracking the Code

Coding Diseases of the Thyroid Gland

The most common diagnoses that involve the thyroid gland are goiters, hypothyroidism, and hyperthyroidism. A goiter is a condition where your thyroid gland grows larger. Iodine deficiency is the most common cause of goiters. Hypothyroidism is the result of the thyroid gland not producing enough of certain crucial hormones. Symptoms of hypothyroidism include weight gain, fatigue, hair loss, muscle cramps, and depression. Hyperthyroidism commonly referred to as an ‘overactive thyroid’, is the result of the thyroid gland producing too much hormone. Common symptoms include weight loss, tachycardia (rapid heart rate), sweating, changes in the menstrual cycle, and nervousness.

Q: 28-year-old male patient with hyperthyroidism has an ultrasound to determine why his neck is enlarged. The results of the ultrasound reveal a uninodular goiter. What ICD-10-CM code is reported?
A: E05.10, Rationale: Hyperthyroidism/with/goiter/nodular/uninodular which sends us to E05.10. We can also locate this code by looking in the ICD-10-CM Alphabetic Index for Goiter/uninodular/toxic or with hyperthyroidism which guides us to code E05.10.
Reference: FY 2022 ICD-10-CM Coding Guidelines, Merck Manual.
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