E01.8 Other iodine-deficiency related thyroid disorders and allied conditions
The ICD-10-CM code for Other iodine-deficiency related thyroid disorders and allied conditions is E01.8 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- E00-E07: Disorders of thyroid gland (E00-E07)
- Category E01
- 5 codes (4 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to E01.8:
- Hypothyroidism (acquired) › iodine-deficiency (acquired)
- Hypothyroidism (acquired) › due to › iodine-deficiency, acquired
- Disorder (of) › thyroid (gland) › iodine-deficiency related
- Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › hypothyroidism, acquired › due to iodine deficiency
- Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) › in (due to) › hypothyroidism, acquired › due to iodine deficiency › with behavioral disturbance
Inclusion Terms
- Acquired iodine-deficiency hypothyroidism NOS
U.S. Hospital Utilization
- An estimated 165 U.S. inpatient stays in 2023 included E01.8 among the documented diagnoses.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Diabetes mellitus (TOC entry)a. Diabetes mellitus ................................................................................................................... 39
Obesity (TOC entry)b. Obesity .................................................................................................................................. 42
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026