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ICD-10 Coding for Hashimoto's Thyroiditis(E06.3)

Complete ICD-10-CM coding and documentation guide for Hashimoto's Thyroiditis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Chronic Lymphocytic ThyroiditisAutoimmune Thyroiditis

Related ICD-10 Code Ranges

Complete code families applicable to Hashimoto's Thyroiditis

E06.3Primary Range

Autoimmune thyroiditis

Primary code for Hashimoto's Thyroiditis, including cases with hypothyroidism.

Hypothyroidism, unspecified

Used when hypothyroidism is present but the autoimmune etiology is not confirmed.

Key Information: ICD-10 code for Hashimoto's Thyroiditis

Essential facts and insights about Hashimoto's Thyroiditis

The ICD-10 code for Hashimoto's Thyroiditis is E06.3, covering autoimmune thyroiditis.

Primary ICD-10-CM Code for hashimoto

Autoimmune thyroiditis
Billable Code

Decision Criteria

clinical Criteria

  • Presence of positive TPO antibodies and elevated TSH.

documentation Criteria

  • Detailed lab results and clinical symptoms documented.

Applicable To

  • Hashimoto's thyroiditis
  • Chronic lymphocytic thyroiditis

Excludes

Clinical Validation Requirements

  • Positive TPO antibodies >34 IU/mL
  • TSH >4.5 mIU/L with low free T4

Code-Specific Risks

  • Incorrectly using E03.9 when Hashimoto's is confirmed.

Coding Notes

  • Ensure documentation includes specific lab values and clinical findings to support the diagnosis.

Ancillary Codes

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

Long-term (current) use of thyroid hormone

Z79.4
Use when the patient is prescribed levothyroxine.

Abnormal thyroid function studies

R94.6
Use if labs show subclinical dysfunction without overt symptoms.

Differential Codes

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

Hypothyroidism, unspecified

E03.9
Use when hypothyroidism is present but autoimmune cause is not confirmed.

Thyrotoxicosis, unspecified

E05.90
Use for Hashitoxicosis phase when hyperthyroid symptoms are present.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Hashimoto's Thyroiditis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code E06.3.

Impact

Clinical: May lead to misdiagnosis or inappropriate treatment., Regulatory: Non-compliance with documentation standards., Financial: Potential claim denials due to insufficient documentation.

Mitigation Strategy

Ensure detailed documentation of lab results., Use specific terminology like 'Hashimoto's Thyroiditis'.

Impact

Reimbursement: May result in lower reimbursement due to less specific coding., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate data representation of patient conditions.

Mitigation Strategy

Ensure documentation confirms autoimmune etiology before coding.

Impact

Using unspecified codes when specific diagnosis is confirmed.

Mitigation Strategy

Regular training on coding guidelines and documentation requirements.

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 Hashimoto's Thyroiditis, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Hashimoto's Thyroiditis

Use these documentation templates to ensure complete and accurate documentation for Hashimoto's Thyroiditis. These templates include all required elements for proper coding and billing.

Initial diagnosis of Hashimoto's Thyroiditis

Specialty: Endocrinology

Required Elements

  • Patient history
  • Lab results (TSH, TPO antibodies)
  • Physical examination findings

Example Documentation

Patient presents with fatigue and weight gain. Labs: TSH 14.2 mIU/L, TPO antibodies 1200 IU/mL. Diagnosis: Hashimoto's Thyroiditis. Plan: Start levothyroxine 50 mcg daily.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has thyroid issues.
Good Documentation Example
Patient diagnosed with Hashimoto's Thyroiditis based on TSH 14.2 mIU/L and TPO antibodies 1200 IU/mL.
Explanation
The good example provides specific lab results and a clear diagnosis.

Need help with ICD-10 coding for Hashimoto's Thyroiditis? Ask your questions below.

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