E00-E07
Medium Complexity

Disorders of thyroid gland

Primary Specialty: Endocrinology
Last Updated: 2025-09-09

ICD-10 Codes (58)

58 billable
0 category headers
E01
Billable
Iodine-deficiency related thyroid disorders and allied conditions
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E01.0
Billable
Iodine-deficiency related diffuse (endemic) goiter
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E01.1
Billable
Iodine-deficiency related multinodular (endemic) goiter
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E01.2
Billable
Iodine-deficiency related (endemic) goiter, unspecified
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E01.8
Billable
Other iodine-deficiency related thyroid disorders and allied conditions
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E02
Billable
Subclinical iodine-deficiency hypothyroidism
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E03
Billable
Other hypothyroidism
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E03.0
Billable
Congenital hypothyroidism with diffuse goiter
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E03.1
Billable
Congenital hypothyroidism without goiter
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E03.2
Billable
Hypothyroidism due to medicaments and other exogenous substances
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E03.3
Billable
Postinfectious hypothyroidism
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E03.4
Billable
Atrophy of thyroid (acquired)
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E03.5
Billable
Myxedema coma
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E03.8
Billable
Other specified hypothyroidism
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E03.9
Billable
Hypothyroidism, unspecified
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E04
Billable
Other nontoxic goiter
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E04.0
Billable
Nontoxic diffuse goiter
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E04.1
Billable
Nontoxic single thyroid nodule
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E04.2
Billable
Nontoxic multinodular goiter
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E04.8
Billable
Other specified nontoxic goiter
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E04.9
Billable
Nontoxic goiter, unspecified
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E05
Billable
Thyrotoxicosis [hyperthyroidism]
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E05.0
Billable
Thyrotoxicosis with diffuse goiter
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E05.00
Billable
Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm
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E05.01
Billable
Thyrotoxicosis with diffuse goiter with thyrotoxic crisis or storm
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E05.1
Billable
Thyrotoxicosis with toxic single thyroid nodule
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E05.10
Billable
Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm
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E05.11
Billable
Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm
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E05.2
Billable
Thyrotoxicosis with toxic multinodular goiter
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E05.20
Billable
Thyrotoxicosis with toxic multinodular goiter without thyrotoxic crisis or storm
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E05.21
Billable
Thyrotoxicosis with toxic multinodular goiter with thyrotoxic crisis or storm
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E05.3
Billable
Thyrotoxicosis from ectopic thyroid tissue
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E05.30
Billable
Thyrotoxicosis from ectopic thyroid tissue without thyrotoxic crisis or storm
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E05.31
Billable
Thyrotoxicosis from ectopic thyroid tissue with thyrotoxic crisis or storm
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E05.4
Billable
Thyrotoxicosis factitia
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E05.40
Billable
Thyrotoxicosis factitia without thyrotoxic crisis or storm
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E05.41
Billable
Thyrotoxicosis factitia with thyrotoxic crisis or storm
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E05.8
Billable
Other thyrotoxicosis
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E05.80
Billable
Other thyrotoxicosis without thyrotoxic crisis or storm
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E05.81
Billable
Other thyrotoxicosis with thyrotoxic crisis or storm
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E05.9
Billable
Thyrotoxicosis, unspecified
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E05.90
Billable
Thyrotoxicosis, unspecified without thyrotoxic crisis or storm
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E05.91
Billable
Thyrotoxicosis, unspecified with thyrotoxic crisis or storm
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E06
Billable
Thyroiditis
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E06.0
Billable
Acute thyroiditis
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E06.1
Billable
Subacute thyroiditis
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E06.2
Billable
Chronic thyroiditis with transient thyrotoxicosis
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E06.3
Billable
Autoimmune thyroiditis
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E06.4
Billable
Drug-induced thyroiditis
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E06.5
Billable
Other chronic thyroiditis
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E06.9
Billable
Thyroiditis, unspecified
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E07
Billable
Other disorders of thyroid
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E07.0
Billable
Hypersecretion of calcitonin
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E07.1
Billable
Dyshormogenetic goiter
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E07.8
Billable
Other specified disorders of thyroid
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E07.81
Billable
Sick-euthyroid syndrome
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E07.89
Billable
Other specified disorders of thyroid
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E07.9
Billable
Disorder of thyroid, unspecified
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Updates & Changes

FY 2026 Updates

Current Year

Deleted Codes

No codes deleted in this range for FY 2026

No significant changes for FY 2026

This range maintains stability with current coding practices

Historical Changes

  • •FY 2025: Routine maintenance updates with minor terminology clarifications
  • •FY 2024: Enhanced specificity requirements for certain code ranges
  • •FY 2023: Updated documentation guidelines for improved clarity

Upcoming Changes

  • •Proposed updates pending review by Coordination and Maintenance Committee
  • •Under consideration: Enhanced digital health integration codes

Implementation Guidance

  • •Review all FY 2026 updates for E00-E07 codes before implementation
  • •Always verify the most current codes in the ICD-10-CM manual
  • •Ensure clinical documentation supports the selected diagnosis codes
  • +3 more guidance items...

Range Overview

high priority

The ICD-10 code range E00-E07 pertains to disorders of the thyroid gland. This includes conditions such as hypothyroidism, thyrotoxicosis, thyroiditis, and other thyroid disorders. These codes are used to classify and record these conditions in medical records and billing systems, providing a standardized language for diagnosis and treatment.

Key Usage Points:

  • •Always use specific codes that identify the type of thyroid disorder.
  • •Include additional codes to identify any associated conditions or complications.
  • •Use combination codes where available to accurately depict the patient's condition.
  • •Always verify the code in the Tabular List before assigning it.
  • •Remember to code for any associated manifestations.

Coding Guidelines

When to Use:

  • ✓When a patient is diagnosed with a thyroid disorder.
  • ✓When a patient's thyroid disorder has caused other health complications.
  • ✓When a patient's medical history includes a thyroid disorder.
  • ✓When a patient is receiving treatment for a thyroid disorder.

When NOT to Use:

  • ✗When a patient has symptoms of a thyroid disorder but no confirmed diagnosis.
  • ✗When a patient's thyroid disorder is not relevant to the current treatment.
  • ✗When a patient's thyroid disorder is not the cause of the current health issue.
  • ✗When a patient's thyroid disorder has been resolved and is no longer affecting their health.

Code Exclusions

Always verify exclusions in the Tabular List before assigning a code.

Documentation Requirements

Proper documentation is crucial for accurate coding. It should include the type of thyroid disorder, its cause, any associated conditions or complications, and the patient's treatment plan.

Clinical Information:

  • •Type of thyroid disorder
  • •Cause of the disorder
  • •Any associated conditions or complications
  • •Treatment plan

Supporting Evidence:

  • •Lab results
  • •Imaging results
  • •Notes from physical examinations
  • •Patient's medical history
Good Documentation Example:

Patient diagnosed with Hashimoto's thyroiditis. Lab results show elevated TSH levels. Patient also has associated hypothyroidism. Treatment plan includes levothyroxine.

Poor Documentation Example:

Patient has thyroid issue.

Common Documentation Errors:

  • âš Not specifying the type of thyroid disorder
  • âš Not including associated conditions or complications
  • âš Not including the cause of the disorder
  • âš Not including the treatment plan

Range Statistics

8
Total Codes
58
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:4

Coding Complexity

Medium
Complexity Rating

Coding for thyroid disorders can be moderately complex due to the need to identify the specific type of disorder, any associated conditions or complications, and the cause of the disorder. Additionally, the use of combination codes can add to this complexity.

Key Factors:
  • â–¸Determining the specific type of thyroid disorder
  • â–¸Identifying any associated conditions or complications
  • â–¸Understanding the cause of the disorder
  • â–¸Applying the correct combination codes

Specialty Focus

These codes are primarily used by endocrinologists, but can also be used by general practitioners and other specialists when treating thyroid disorders.

Primary Specialties:
Endocrinology
70%
General Practice
20%
Oncology
10%
Clinical Scenarios:
  • • A patient with a history of Hashimoto's thyroiditis presents with fatigue and weight gain.
  • • A patient is diagnosed with Graves' disease after presenting with symptoms of hyperthyroidism.
  • • A patient with a goiter is referred to an endocrinologist for further evaluation.
  • • A patient is diagnosed with thyroiditis after a viral infection.

Resources & References

Resources for coding thyroid disorders include the ICD-10-CM Official Guidelines for Coding and Reporting, the American Association of Clinical Endocrinologists, and the American Thyroid Association.

Official Guidelines:

  • ICD-10-CM Official Guidelines for Coding and Reporting
  • American Association of Clinical Endocrinologists
  • American Thyroid Association

Clinical References:

  • Endocrine Society
  • National Institute of Diabetes and Digestive and Kidney Diseases

Educational Materials:

  • American Health Information Management Association
  • American Academy of Professional Coders

Frequently Asked Questions

How do I code for a patient with a thyroid disorder and an associated condition?

Use a combination code if available, or code for both the thyroid disorder and the associated condition separately.