K04 Diseases of pulp and periapical tissues
ICD-10-CM category K04 sits in Chapter 11 (Diseases of the digestive system, K00-K95). It contains 12 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
K04.0 PulpitisK04.9 Other and unsp diseases of pulp and periapical tissues
Billable codes in K04
| Code | Description |
|---|---|
K04.01 | Reversible pulpitis |
K04.02 | Irreversible pulpitis |
K04.1 | Necrosis of pulp |
K04.2 | Pulp degeneration |
K04.3 | Abnormal hard tissue formation in pulp |
K04.4 | Acute apical periodontitis of pulpal origin |
K04.5 | Chronic apical periodontitis |
K04.6 | Periapical abscess with sinus |
K04.7 | Periapical abscess without sinus |
K04.8 | Radicular cyst |
K04.90 | Unspecified diseases of pulp and periapical tissues |
K04.99 | Other diseases of pulp and periapical tissues |
Search within ICD-10-CM for K04 and related codes
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