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ICD-10 Coding for Thyrotoxicosis(E05.00, E05.01)

Complete ICD-10-CM coding and documentation guide for Thyrotoxicosis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

HyperthyroidismThyroid storm

Related ICD-10 Code Ranges

Complete code families applicable to Thyrotoxicosis

E05.0-E05.9Primary Range

Thyrotoxicosis

This range covers various forms of thyrotoxicosis, including those with and without crisis, and is essential for accurate diagnosis and coding.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
E05.00Thyrotoxicosis with diffuse goiter without thyrotoxic crisisUse when the patient has thyrotoxicosis with diffuse goiter but no crisis symptoms.
  • Elevated FT4/FT3
  • Diffuse enlargement on ultrasound
  • No signs of thyrotoxic storm
E05.01Thyrotoxicosis with diffuse goiter with thyrotoxic crisisUse when the patient presents with thyrotoxic crisis symptoms.
  • Tachycardia >140
  • Hyperthermia >40°C
  • Altered mental status

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for thyrotoxicosis

Essential facts and insights about Thyrotoxicosis

The ICD-10 code for thyrotoxicosis with diffuse goiter without crisis is E05.00, and with crisis is E05.01.

Primary ICD-10-CM Codes for thyrotoxicosis

Thyrotoxicosis with diffuse goiter without thyrotoxic crisis
Billable Code

Decision Criteria

clinical Criteria

  • Diffuse goiter without crisis symptoms

Applicable To

  • Graves' disease without crisis

Excludes

  • Thyrotoxicosis with crisis (E05.01)

Clinical Validation Requirements

  • Elevated FT4/FT3
  • Diffuse enlargement on ultrasound
  • No signs of thyrotoxic storm

Code-Specific Risks

  • Misclassification if crisis symptoms are present

Coding Notes

  • Ensure documentation clearly differentiates between crisis and non-crisis states.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Cardiomyopathy secondary to thyrotoxicosis

I43.8
Use when cardiomyopathy is explicitly linked to thyrotoxicosis.

Tachycardia

R00.0
Use only if tachycardia is not inherent to the thyrotoxicosis diagnosis.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Thyrotoxicosis with diffuse goiter with thyrotoxic crisis

E05.01
Presence of crisis symptoms such as tachycardia >140, hyperthermia >40°C.

Thyrotoxicosis with diffuse goiter without thyrotoxic crisis

E05.00
Absence of crisis symptoms.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Thyrotoxicosis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code E05.00.

Impact

Clinical: May lead to inappropriate treatment decisions., Regulatory: Could result in audit failures., Financial: Potential for claim denials.

Mitigation Strategy

Ensure all crisis symptoms are documented., Use checklists for crisis indicators.

Impact

Reimbursement: May lead to claim denials or reduced reimbursement., Compliance: Inaccurate coding can result in compliance issues., Data Quality: Affects the accuracy of clinical data and reporting.

Mitigation Strategy

Ensure documentation specifies the type of goiter and presence of crisis symptoms.

Impact

Inaccurate coding of thyrotoxic crisis can lead to audits.

Mitigation Strategy

Use detailed checklists to ensure all crisis symptoms are documented.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Thyrotoxicosis, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Thyrotoxicosis

Use these documentation templates to ensure complete and accurate documentation for Thyrotoxicosis. These templates include all required elements for proper coding and billing.

Endocrinology Progress Note

Specialty: Endocrinology

Required Elements

  • Assessment of thyrotoxicosis type
  • Lab results
  • Goiter characterization
  • Treatment plan

Example Documentation

Assessment: Thyrotoxicosis with toxic multinodular goiter (E05.20). Labs: TSH <0.01, FT4 2.1 ng/dL. Plan: Methimazole 20 mg daily.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Hyperthyroidism
Good Documentation Example
TSH <0.01 μIU/mL, FT4 4.2 ng/dL, diffuse goiter with hypervascularity on Doppler, TRAb positive
Explanation
The good example provides specific lab values and imaging findings, supporting the diagnosis.

Need help with ICD-10 coding for Thyrotoxicosis? Ask your questions below.

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