What is the ICD-10 code for history of thyroid cancer?

The ICD-10 code for a history of thyroid cancer is Z85.850, used when the patient has completed treatment and there is no evidence of active disease.

When should Z85.850 be used?

Use Z85.850 for patients with a history of thyroid cancer who are in remission and not undergoing active treatment.

ICD-10 Coding for History of Thyroid Cancer(Z85.850, E89.0, R94.6)

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Learn about the ICD-10 code Z85.850 for history of thyroid cancer, including documentation requirements and coding guidelines.

Also known as:

Thyroid Cancer in RemissionPost-Thyroidectomy Statushx thyroid cancer

Related ICD-10 Code Ranges

Complete code families applicable to History of Thyroid Cancer

Z00-Z99Primary Range

Factors influencing health status and contact with health services

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
Z85.850	Personal history of malignant neoplasm of thyroid	After curative treatment with no current evidence of disease.	No evidence of disease post-treatment Surveillance monitoring without active treatment
C73	Malignant neoplasm of thyroid gland	During active treatment or if recurrence is confirmed.	Active treatment ongoing Evidence of recurrence

Primary ICD-10-CM Codes

Personal history of malignant neoplasm of thyroid

Z85.850Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Malignant neoplasm of thyroid glandC73

Personal history of malignant neoplasm of thyroidZ85.850

Documentation & Coding Risks

Avoid these common issues when documenting History of Thyroid Cancer.

Failing to document 'no evidence of disease'.

Impact

Clinical: Misrepresentation of patient's cancer status., Regulatory: Potential audit issues., Financial: Incorrect billing and reimbursement.

Mitigation

Standardize documentation templates, Regular training on documentation requirements

Using C73 for patients under surveillance.

Impact

Reimbursement: Incorrectly using C73 may lead to inappropriate higher reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate patient records and data reporting.

Mitigation

Switch to Z85.850 once treatment is completed and no active disease is present.

Incorrect use of active cancer codes

Impact

Using C73 for patients in remission.

Mitigation

Regular audits and coder education.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with Z85.850.

Primary Code

Z85.850

Personal history of malignant neoplasm of thyroid

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ICD-10 codes4

Coding risks3

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ICD-10 Coding for History of Thyroid Cancer(Z85.850, E89.0, R94.6)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for history of thyroid cancer?

When should Z85.850 be used?

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