ICD-10 Code K08.82 – Secondary occlusal trauma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K08.82 – Secondary occlusal trauma
What it is
Secondary occlusal trauma means damage to the supporting structures of a tooth when normal bite forces act on teeth with reduced periodontal support. It reflects trauma from occlusion in a weakened attachment environment.
Clinical signs
Common findings include tooth mobility, soreness on biting, and widened periodontal ligament space on imaging. Clinical features vary; refer to documentation.
When to use this code
Use K08.82 when the record states secondary occlusal trauma or describes occlusal trauma occurring after periodontal support has been compromised. It may be used with periodontal disease documentation when the provider links the bite force to the tooth injury. Check documentation if the note only mentions mobility without that causal relationship.
Do not use for
Do not use this code for primary occlusal trauma, where excessive force acts on a tooth with normal support. Also avoid it when the chart does not clearly connect the condition to occlusal trauma.
Coding tip
Code only when the clinician documents secondary occlusal trauma or an equivalent causal statement.