ICD10BillableValid for clinical use

ICD-10 Code E01.8: Other iodine-deficiency related thyroid disorders and allied conditions

E01.8 is a billable ICD-10 diagnosis code used to classify Other iodine-deficiency related thyroid disorders and allied conditions in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

When is it used?

  • May be used when a clinician documents other iodine-deficiency related thyroid disorders and allied conditions in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
4Endocrine, nutritional and metabolic diseases (E00-E89)
block
E00-E07Disorders of thyroid gland
category
E01Iodine-deficiency related thyroid disorders and allied conditions
currentE01

Official coding notes

Inclusion terms
  • Acquired iodine-deficiency hypothyroidism NOS

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

EndocrinologistGeneral Physician

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
E01.8

Common synonyms

Other iodine-deficiency related thyroid disorders and allied conditions

Frequently asked questions

Code details

CodeE01.8
SystemICD10
Display nameOther iodine-deficiency related thyroid disorders and allied conditions
ChapterEndocrine, nutritional and metabolic diseases (E00-E89)
BlockDisorders of thyroid gland

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Dementia(degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)Dementia(degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)Disorder(of)Hypothyroidism(acquired)Hypothyroidism(acquired)
See also
Dementia, in, diseases specified elsewhere

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code E01.8 for Other iodine-deficiency related thyroid disorders and allied conditions | HealthAssure