K04.5
ICD-10BillableChronic apical periodontitis
Official ICD-10-CM descriptor (FY2026)
Chronic apical periodontitis
K04.5 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Apical or periapical granuloma
- Apical periodontitis NOS
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- chronic periodontitis (K05.3-)
Related codes in K04
- K04.0Pulpitiscategory
- K04.1Necrosis of pulp
- K04.2Pulp degeneration
- K04.3Abnormal hard tissue formation in pulp
- K04.4Acute apical periodontitis of pulpal origin
- K04.6Periapical abscess with sinus
- K04.7Periapical abscess without sinus
- K04.8Radicular cyst
- K04.9Other and unsp diseases of pulp and periapical tissuescategory
Where this code sits
- Parent code
- K04
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.