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v1.0.0
ICD-10 Guide
DiagnosesThyroid Screening

Thyroid Screening

ICD-10 Coding for Thyroid Screening(E03.9, Z13.29)

PRIMARY SPECIALTYEndocrinology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Thyroid Screening?
Essential facts and insights about Thyroid Screening

Key Clinical Considerations:

  • Fatigue, weight changes, temperature sensitivity, hair loss
  • TSH (Thyroid Stimulating Hormone) test, Free T4 test, Thyroid antibodies
  • Goiter, dry skin, bradycardia, tremors

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history, physical exam results, lab test results
  • ICD-10-CM codes for hypothyroidism (E03.9), hyperthyroidism (E05.90)
  • Example: 'Patient presents with fatigue and weight gain; TSH elevated at 6.5 mIU/L.'

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for appropriate use of screening codes.
  • Common errors include incorrect coding of symptoms.

Code Exclusions

Important Exclusions

  • Conditions like thyroid cancer, congenital hypothyroidism
  • Alternative codes for specific thyroid disorders

Related ICD-10 Codes

Primary Codes
E03.9
Hypothyroidism, unspecified
E05.90
Hyperthyroidism, unspecified
Ancillary Codes
Z79.899
Differential Codes
E02
E02
for elevated TSH with normal
T4
and no symptoms.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Endocrinology

Specialty Applications

  • Adults, pregnant women, individuals with family history of thyroid disease
  • Endocrinology clinics, primary care settings

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?

Include patient history, lab results, and clinical findings.

Billing considerations?

Ensure correct ICD-10 codes are used to avoid denials.