ICD-10-CM · Chapter 11 · K00-K95
K04 Diseases of pulp and periapical tissues
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| K04..0 | Pulpitis | No |
| K04..01 | Reversible pulpitis | Yes |
| K04..02 | Irreversible pulpitis | Yes |
| K04..1 | Necrosis of pulp | Yes |
| K04..2 | Pulp degeneration | Yes |
| K04..3 | Abnormal hard tissue formation in pulp | Yes |
| K04..4 | Acute apical periodontitis of pulpal origin | Yes |
| K04..5 | Chronic apical periodontitis | Yes |
| K04..6 | Periapical abscess with sinus | Yes |
| K04..7 | Periapical abscess without sinus | Yes |
| K04..8 | Radicular cyst | Yes |
| K04..9 | Other and unspecified diseases of pulp and periapical tissues | No |
| K04..90 | Unspecified diseases of pulp and periapical tissues | Yes |
| K04..99 | Other diseases of pulp and periapical tissues | Yes |
Last reviewed: September 2026