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ICD-10 Guide
ICD-10 CodesE01.2

E01.2

Billable

Iodine-deficiency related (endemic) goiter, unspecified

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 E01.2 is a billable code used to indicate a diagnosis of iodine-deficiency related (endemic) goiter, unspecified.

Key Diagnostic Point:

Iodine-deficiency related (endemic) goiter, unspecified, refers to an enlargement of the thyroid gland that occurs due to insufficient iodine intake, which is essential for the synthesis of thyroid hormones. This condition is prevalent in regions where the soil and water supply lack adequate iodine, leading to a compensatory increase in thyroid size as the gland attempts to produce sufficient hormones. The goiter may present as a visible swelling in the neck and can be associated with symptoms of hypothyroidism, such as fatigue, weight gain, and cold intolerance, or, less commonly, hyperthyroidism, characterized by weight loss, increased heart rate, and anxiety. Diagnosis typically involves clinical examination, thyroid function tests (TFTs), and imaging studies. TFTs assess levels of Thyroid Stimulating Hormone (TSH) and thyroid hormones (T3 and T4) to determine the functional status of the thyroid. Management includes iodine supplementation and monitoring thyroid function to prevent complications such as hypothyroidism or thyroid nodules.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation (e.g., size of goiter, symptoms of hypo/hyperthyroidism)
  • Need for accurate documentation of iodine deficiency status
  • Differentiation from other types of goiter (e.g., toxic goiter)
  • Potential for co-existing thyroid disorders

Audit Risk Factors

  • Inadequate documentation of iodine deficiency
  • Failure to perform or document thyroid function tests
  • Misclassification of goiter type
  • Lack of follow-up documentation for management

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Thorough documentation of thyroid function tests, iodine levels, and clinical symptoms.

Common Clinical Scenarios

Patients presenting with goiter, fatigue, weight changes, or other thyroid-related symptoms.

Billing Considerations

Ensure clear differentiation between iodine deficiency and other thyroid disorders.

Primary Care

Documentation Requirements

Document patient history, physical examination findings, and any referrals to specialists.

Common Clinical Scenarios

Routine check-ups revealing goiter or symptoms suggestive of thyroid dysfunction.

Billing Considerations

Monitor for changes in symptoms and ensure appropriate referrals for further evaluation.

Coding Guidelines

Inclusion Criteria

Use E01.2 When
  • Follow ICD
  • CM guidelines for coding goiter and thyroid disorders
  • Include documentation of iodine deficiency and thyroid function tests

Exclusion Criteria

Do NOT use E01.2 When
  • Exclude conditions that are not related to iodine deficiency

Related ICD-10 Codes

Related CPT Codes

84443CPT Code

Thyroid stimulating hormone (TSH)

Clinical Scenario

Used to evaluate thyroid function in patients with goiter.

Documentation Requirements

Document the reason for the test and any relevant symptoms.

Specialty Considerations

Endocrinologists may require additional tests based on initial findings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of thyroid disorders, improving the accuracy of data collection and reimbursement processes for iodine deficiency-related conditions.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of thyroid disorders, improving the accuracy of data collection and reimbursement processes for iodine deficiency-related conditions.

Reimbursement & Billing Impact

reimbursement processes for iodine deficiency-related conditions.

Resources

Clinical References

  • •
    American Thyroid Association

Coding & Billing References

  • •
    American Thyroid Association

Frequently Asked Questions

What is the primary cause of E01.2?

E01.2 is primarily caused by insufficient iodine intake, leading to inadequate production of thyroid hormones and subsequent thyroid enlargement.