ICD-10 Code K04.99 – Other diseases of pulp and periapical tissues (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K04.99 – Other diseases of pulp and periapical tissues
What it is
K04.99 identifies pulp and periapical conditions that do not fit a more specific ICD-10-CM diagnosis. Use it when the chart documents an unspecified or other disorder affecting the tooth pulp or tissues around the root.
Clinical signs
Clinical features vary; refer to documentation. Records may note tooth pain, sensitivity, swelling, or periapical pathology, but the specific diagnosis is not described well enough for a more exact code.
When to use this code
Use K04.99 when the clinician documents an other or unspecified disease of the pulp or periapical tissues and no higher-specificity code applies. It is appropriate when the note confirms a pulp or root-end disorder but does not name the exact condition. Check documentation before selecting it.
Do not use for
Do not use this code when the chart clearly identifies a more specific pulp or periapical diagnosis. Also avoid it if the condition is unrelated to pulp or periapical tissues.
Coding tip
If the dental note is vague, look for the exact pathologic term before defaulting to K04.99.