ICD-10 Coding for Abnormal Thyroid Lab(R94.6, E03.9)
This diagnosis requires careful attention to:
Template: 'Patient diagnosed with abnormal thyroid function based on elevated TSH and low Free T4.'
Template: 'Patient presents with fatigue and weight gain consistent with hypothyroidism.'
Template: 'Diagnostic criteria met: TSH 6.5 mIU/L, Free T4 0.8 ng/dL.'
Template: 'Treatment plan includes levothyroxine for hypothyroidism management.'
Detailed lab results, clinical symptoms, and treatment plans must be documented.
Use R94.6 for abnormal results without a definitive diagnosis; use E03.9 for confirmed hypothyroidism.
Reimbursement may be denied if documentation does not support medical necessity; ensure thorough documentation.
Related CPT codes include 84443 (TSH) and 84439 (Free T4) for thyroid function tests.
