Periapical abscess without sinus

This code signifies an acute or chronic localized collection of pus at the apex of a tooth root, resulting from pulpal necrosis and bacterial infection. It indicates the absence of a draining tract or fistula extending to the oral cavity or facial skin.

Apply this code when documentation confirms an infection at the tooth root tip without evidence of a sinus tract. This typically presents with localized pain, swelling, and tenderness to percussion on the affected tooth. Supporting documentation includes clinical examination findings, radiographic evidence of periapical radiolucency, and the absence of a visible or palpable draining fistula.

• Differentiate from periapical abscess with sinus (522.6), which indicates a draining fistula.
• Ensure documentation specifies "without sinus" to support accurate code assignment.
• Consider sequencing with codes for the underlying dental caries or trauma if applicable.