ICD-10 Code K04.2 – Pulp degeneration (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K04.2 – Pulp degeneration
What it is
K04.2 identifies degeneration of the dental pulp, the soft tissue inside a tooth. Use it when documentation describes degenerative change in the pulp rather than infection, necrosis, or trauma.
Clinical signs
Clinical features vary; refer to documentation. Findings may include tooth discoloration, reduced vitality on testing, or radiographic changes suggesting pulpal degeneration.
When to use this code
Use K04.2 when the dentist or clinician specifically documents pulp degeneration. It fits cases where the record distinguishes degeneration from caries with pulp involvement, pulpitis, abscess, or necrosis. If the note is vague, check documentation before coding.
Do not use for
Do not use this code for pulpitis, pulpal necrosis, or periapical abscess. Those conditions require different ICD-10-CM codes.
Coding tip
Code only when the record clearly names degeneration of the pulp; otherwise, query for the exact pulpal diagnosis.