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E01 Iodine-deficiency related thyroid disorders and allied cond

ICD-10-CM category E01 sits in Chapter 4 (Endocrine, nutritional and metabolic diseases, E00-E89). It contains 4 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Billable codes in E01

CodeDescription
E01.0Iodine-deficiency related diffuse (endemic) goiter
E01.1Iodine-deficiency related multinodular (endemic) goiter
E01.2Iodine-deficiency related (endemic) goiter, unspecified
E01.8Other iodine-deficiency related thyroid disorders and allied conditions

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