Category K04
Non-Billable Category
FY2027 Dataset
K04: Diseases of pulp and periapical tissues
Parent Chapter: Chapter 11: Diseases of the digestive system
Notice on Coding Specificity: Category K04 is a 3-character heading and cannot be reported directly on healthcare claims. You must assign one of the specific child codes listed below.
Specific Child Codes in Category K04
| Code | Official Descriptor | Status | Action |
|---|---|---|---|
| K04.01 | Reversible pulpitis | Billable Code | View Code |
| K04.02 | Irreversible pulpitis | Billable Code | View Code |
| K04.1 | Necrosis of pulp | Billable Code | View Code |
| K04.2 | Pulp degeneration | Billable Code | View Code |
| K04.3 | Abnormal hard tissue formation in pulp | Billable Code | View Code |
| K04.4 | Acute apical periodontitis of pulpal origin | Billable Code | View Code |
| K04.5 | Chronic apical periodontitis | Billable Code | View Code |
| K04.6 | Periapical abscess with sinus | Billable Code | View Code |
| K04.7 | Periapical abscess without sinus | Billable Code | View Code |
| K04.8 | Radicular cyst | Billable Code | View Code |
| K04.90 | Unspecified diseases of pulp and periapical tissues | Billable Code | View Code |
| K04.99 | Other diseases of pulp and periapical tissues | Billable Code | View Code |
| K04 | Diseases of pulp and periapical tissues | Non-Billable | View Code |
| K04.0 | Pulpitis | Non-Billable | View Code |
| K04.9 | Other and unsp diseases of pulp and periapical tissues | Non-Billable | View Code |