K04.8

K04.8: Radicular cyst

Billable / specific codeICD-10-CM

K04.8 is a billable, specific ICD-10-CM code for radicular cyst. It is valid for submission on a claim.

Check K04.8 with the rest of the claim: free scrubber

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

lateral periodontal cyst (K09.0)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Apical (periodontal) cyst
Periapical cyst
Residual radicular cyst

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

K04.8 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A57204Billing and Coding: MRI and CT Scans of the Head and Neck

Alphabetic index entries that lead here

Cyst›apical(tooth) (periodontal)
Cyst›dental(root)
Cyst›periapical
Cyst›periodontal
Cyst›radicular(residual)
Cyst›radiculodental
Cyst›residual(radicular)
Cyst›mandible›radicular
Cyst›maxilla›radicular

Code history

Unchanged in every release from FY2024 to FY2027.