Is K04 a billable code?
No. K04 is a header code that groups 12 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
K04: Diseases of pulp and periapical tissues
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
K04 groups related diagnoses under diseases of pulp and periapical tissues. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under K04
- K04.01Reversible pulpitis
- K04.02Irreversible pulpitis
- K04.1Necrosis of pulp
- K04.2Pulp degeneration
- K04.3Abnormal hard tissue formation in pulp
- K04.4Acute apical periodontitis of pulpal origin
- K04.5Chronic apical periodontitis
- K04.6Periapical abscess with sinus
- K04.7Periapical abscess without sinus
- K04.8Radicular cyst
- K04.90Unspecified diseases of pulp and periapical tissues
- K04.99Other diseases of pulp and periapical tissues
K04 questions
What does K04 mean?
K04 is the ICD-10-CM code for Diseases of pulp and periapical tissues. It is in chapter 11, Diseases of the digestive system (K00-K95).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.