ICD-10 Code K04.01 – Reversible pulpitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K04.01 – Reversible pulpitis
What it is
Reversible pulpitis is inflammation of the dental pulp that can improve if the irritant is removed. You use this code when the pulp is irritated but not irreversibly damaged.
Clinical signs
Typical findings include short, sharp pain to cold, sweet, or touch stimuli that stops when the trigger ends. Clinical features vary; refer to documentation.
When to use this code
Use K04.01 when the record documents reversible pulpitis, early pulp inflammation, or a dentist’s assessment that the tooth pulp remains vital and recoverable. It may appear with caries, a leaking restoration, or recent dental trauma. Check documentation if the note does not clearly state reversibility.
Do not use for
Do not use this code for irreversible pulpitis, pulp necrosis, or apical abscess. If the diagnosis is only tooth pain without pulp inflammation, code the documented condition instead.
Coding tip
Confirm the provider explicitly documents “reversible” pulpitis; pain alone is not enough.