ICD-10 Guide

Papillary Thyroid Carcinoma

ICD-10 Coding for Papillary Thyroid Carcinoma(C73, C77.0)

PRIMARY SPECIALTYEndocrinology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Papillary Thyroid Carcinoma?

Essential facts and insights about Papillary Thyroid Carcinoma

Key Clinical Considerations:

Painless thyroid nodule
Hoarseness or voice changes
Lymphadenopathy in the neck
Key diagnostic tests: Fine needle aspiration biopsy (FNAB), ultrasound
Physical exam findings: Firm, non-tender thyroid mass

Clinical Information

Clinical Criteria & Documentation Requirements

Required documentation elements: Patient history, physical exam findings, imaging results, biopsy results
Specific coding terminology: Papillary thyroid carcinoma, thyroid nodule, FNAB results
Documentation examples: 'Patient presents with a 2 cm thyroid nodule, FNAB confirms papillary thyroid carcinoma.'

Coding Guidelines

Usage Guidelines & Examples

Usage guidelines: Use C73.0 for papillary thyroid carcinoma specifically.
Common errors: Misclassifying papillary carcinoma as benign or using unspecified codes.

Code Exclusions

Important Exclusions

Excluded conditions: Benign thyroid nodules, other types of thyroid cancer.
Alternative codes: C73.1 (Follicular thyroid carcinoma) should not be used for papillary carcinoma.

Specialty Focus

Primary Specialty

Endocrinology

Specialty Applications

Patient populations: Adults, particularly women aged 30-50.
Clinical settings: Endocrinology clinics, oncology centers, surgical practices.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

Comprehensive clinical documentation
Accurate code selection based on clinical criteria
Proper exclusion considerations
Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

Ensure proper documentation for billing
Verify code specificity requirements
Check for any additional codes needed
Review payer-specific guidelines

Common Issues

Insufficient clinical documentation
Incorrect code selection
Missing supporting diagnoses
Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Complete patient history, imaging studies, and biopsy results must be documented.

Billing considerations?

Ensure accurate coding to reflect the specific type of thyroid carcinoma for proper reimbursement.

Papillary Thyroid Carcinoma

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?

Papillary Thyroid Carcinoma

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?