ICD-10 Code A50.53 – Hutchinson’s triad (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A50.53 – Hutchinson’s triad
What it is
Hutchinson’s triad is the classic late congenital syphilis pattern of interstitial keratitis, eighth nerve deafness, and Hutchinson teeth. Use this code when the diagnosis is documented as the triad, not just one isolated finding.
Clinical signs
Typical findings include corneal inflammation, sensorineural hearing loss, and characteristic notched permanent incisors. Clinical features vary; refer to documentation if the record does not clearly identify all components.
When to use this code
Use A50.53 when the provider documents Hutchinson’s triad, Hutchinson syndrome, or the full late congenital syphilis triad. It is appropriate when the chart links the findings to congenital syphilis rather than another cause. If only one feature is documented, check documentation before coding this specific diagnosis.
Do not use for
Do not use this code for isolated hearing loss, keratitis, or dental abnormalities without documentation of Hutchinson’s triad. Do not assign it when the condition is suspected but not confirmed.
Coding tip
Code the triad only when the provider clearly documents the syndrome; otherwise, capture the individual confirmed findings.