Unspecified nontoxic nodular goiter

This code describes an enlargement of the thyroid gland (goiter) that is characterized by the presence of nodules, but without evidence of hyperthyroidism or hypothyroidism. The specific cause or type of nodular goiter is not documented or is unknown.

Use this code when the physician documents "nodular goiter" or "multinodular goiter" without specifying whether it is toxic or nontoxic, or when the documentation explicitly states "nontoxic nodular goiter, unspecified." This code is appropriate when the patient presents with a palpable thyroid mass or imaging reveals thyroid nodules, and thyroid function tests are within normal limits.

• Avoid using this code if the documentation specifies a toxic nodular goiter (e.g., Plummer's disease), which would be coded elsewhere.
• Ensure documentation clearly indicates the absence of hyperthyroidism or hypothyroidism to support "nontoxic."
• If the specific type of nontoxic nodular goiter is known (e.g., simple goiter), a more specific code should be used.