ICD-10-CM 2027
ICD-10 code for acute pericementitis
From the official ICD-10-CM alphabetic index entry “Pericementitis (chronic) (suppurative) › acute”. Page updated September 29, 2026.
About coding acute pericementitis
The ICD-10-CM code for acute pericementitis is K05.20 (Aggressive periodontitis, unspecified).
Within K05.2, choose K05.20 (unspecified) only when documentation doesn't support a more specific option: localized (K05.21) and generalized (K05.22).
Use an additional code to identify: alcohol abuse and dependence (F10.-), exposure to environmental tobacco smoke (Z77.22), exposure to tobacco smoke in the perinatal period (P96.81), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31) and 2 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific acute pericementitis codes (official index)
- generalized
- localized
Common questions about acute pericementitis ICD-10 codes
What is the ICD-10 code for acute pericementitis?
- K05.20 — Aggressive periodontitis, unspecified.
Is K05.20 billable?
- Yes. K05.20 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K05.20 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K05.20 as a principal diagnosis.
Is K05.20 a CC or MCC?
- No. K05.20 is neither a CC nor an MCC under MS-DRG v44.0.