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ICD-10 Guide
ICD-10 CodesE05.80

E05.80

Billable

Other thyrotoxicosis without thyrotoxic crisis or storm

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

Code Description

ICD-10 E05.80 is a billable code used to indicate a diagnosis of other thyrotoxicosis without thyrotoxic crisis or storm.

Key Diagnostic Point:

E05.80 refers to a condition characterized by an excess of thyroid hormones in the body, leading to symptoms of hyperthyroidism without the acute and severe manifestations seen in a thyrotoxic crisis or storm. This condition can arise from various etiologies, including but not limited to, autoimmune disorders such as Graves' disease, toxic nodular goiter, or excessive intake of thyroid hormone medications. Patients may present with symptoms such as weight loss, increased appetite, anxiety, tremors, heat intolerance, and palpitations. Diagnosis typically involves thyroid function tests, including serum levels of Thyroid Stimulating Hormone (TSH), Free T4, and Free T3. In cases of iodine deficiency, the thyroid may become overactive in response to low iodine levels, leading to compensatory mechanisms that can result in thyrotoxicosis. Management may include antithyroid medications, radioactive iodine therapy, or surgery, depending on the underlying cause and severity of the condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes leading to thyrotoxicosis.
  • Differentiation from other hyperthyroid conditions.
  • Need for comprehensive thyroid function tests.
  • Potential overlap with other ICD-10 codes related to thyroid disorders.

Audit Risk Factors

  • Inadequate documentation of symptoms.
  • Failure to specify the underlying cause of thyrotoxicosis.
  • Misclassification with other hyperthyroid codes.
  • Lack of supporting lab results.

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Thorough documentation of thyroid function tests, patient symptoms, and treatment plans.

Common Clinical Scenarios

Patients presenting with unexplained weight loss, anxiety, or palpitations.

Billing Considerations

Ensure all lab results are included in the medical record to support the diagnosis.

Primary Care

Documentation Requirements

Detailed patient history and physical examination findings related to thyroid function.

Common Clinical Scenarios

Routine screening of thyroid function in patients with risk factors for thyroid disease.

Billing Considerations

Document any referrals to specialists for further evaluation.

Coding Guidelines

Inclusion Criteria

Use E05.80 When
  • Follow official ICD
  • 10 coding guidelines, ensuring that the diagnosis is supported by clinical documentation and laboratory results
  • Include any relevant history of thyroid disorders or treatments

Exclusion Criteria

Do NOT use E05.80 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

84443CPT Code

Thyroid stimulating hormone (TSH)

Clinical Scenario

Used to evaluate thyroid function in patients suspected of hyperthyroidism.

Documentation Requirements

Document the reason for the test and any relevant clinical findings.

Specialty Considerations

Endocrinologists may require more detailed lab results for comprehensive management.

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, including E05.80, which helps in better tracking and management of these conditions. It emphasizes the need for detailed documentation to support the diagnosis.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of thyroid disorders, including E05.80, which helps in better tracking and management of these conditions. It emphasizes the need for detailed documentation to support the diagnosis.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of thyroid disorders, including E05.80, which helps in better tracking and management of these conditions. It emphasizes the need for detailed documentation to support the diagnosis.

Resources

Clinical References

  • •
    American Thyroid Association Guidelines

Coding & Billing References

  • •
    American Thyroid Association Guidelines

Frequently Asked Questions

What is the difference between E05.80 and E05.01?

E05.80 refers to other forms of thyrotoxicosis without a crisis, while E05.01 specifically denotes a thyrotoxic crisis, which is a medical emergency requiring immediate intervention.