ICD-10 Code K06.3 – Horizontal alveolar bone loss (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K06.3 – Horizontal alveolar bone loss
What it is
K06.3 identifies horizontal loss of the alveolar bone, the jawbone that supports teeth. It describes a pattern of bone reduction seen around teeth, usually documented on dental exam or imaging.
Clinical signs
Clinical features vary; refer to documentation. You may see reduced alveolar bone height on radiographs, with a generalized horizontal pattern rather than isolated vertical defects.
When to use this code
Use K06.3 when the record specifically states horizontal alveolar bone loss or documents this radiographic finding. It is appropriate when the provider identifies the bone loss pattern as the diagnosis. Check documentation if the note only mentions periodontal disease without specifying bone loss type.
Do not use for
Do not use this code for generalized periodontal disease, gingival recession, or other bone defects unless horizontal alveolar bone loss is clearly documented. Do not assume the diagnosis from tooth mobility alone.
Coding tip
Code only when the chart names the horizontal pattern or an equivalent documented description.