Non-Billable / Non-Specific Code
ICD-10-CM E01 is the diagnosis code for Iodine-deficiency related thyroid disorders and allied conditions. This code falls under the section "Disorders of thyroid gland" within Chapter 4 — Endocrine, nutritional and metabolic diseases (E00-E89). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as E01. They are mutually exclusive:
Understanding where E01 sits in the ICD-10-CM classification helps ensure proper coding:
No, E01 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
E01 is the ICD-10-CM diagnosis code for "Iodine-deficiency related thyroid disorders and allied conditions". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
E01 is located in Section E00-E07 — "Disorders of thyroid gland" within Chapter 4 of the ICD-10-CM Tabular List.
E01 has 4 sub-code(s) that provide more specific detail: E01.0, E01.1, E01.2, E01.8.
Use E01 when the patients documented diagnosis matches "Iodine-deficiency related thyroid disorders and allied conditions" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Iodine-deficiency related thyroid disorders and allied conditions is E01.
No, E01 is non-billable. Use a more specific sub-code for primary diagnosis billing.
E01 is in Chapter 4 of the ICD-10-CM Tabular List.
Type 1 Excludes for E01 include: congenital iodine-deficiency syndrome (E00.-); subclinical iodine-deficiency hypothyroidism (E02).
Yes, E01 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.