Hi guest! Here are some ICD-10 coding options for you for periodontitis: K05.211 Aggressive periodontitis, localized, slight K05.212 Aggressive periodontitis, localized, moderate K05.213 Aggressive periodontitis, localized, severe K05.219 Aggressive periodontitis, localized, unspecified severity K05.221 Aggressive periodontitis, generalized, slight K05.222 Aggressive periodontitis, generalized, moderate K05.223 Aggressive periodontitis, generalized, severe K05.229 Aggressive periodontitis, generalized, unspecified severity K05.311 Chronic periodontitis, localized, slight K05.312 Chronic periodontitis, localized, moderate K05.313 Chronic periodontitis, localized, severe K05.319 Chronic periodontitis, localized, unspecified severity K05.321 Chronic periodontitis, generalized, slight K05.322 Chronic periodontitis, generalized, moderate K05.323 Chronic periodontitis, generalized, severe K05.329 Chronic periodontitis, generalized, unspecified severity K05.4 – Periodontosis As for the procedure codes, yes many medical insurers these day will accept the “D” codes on the medical claim for medically necessary services. If there is not a specific CPT code available to describe the procedure, you can use CPT code below and include a narrative report describing the procedure: 41899 – Unlisted procedure, dentoalveolar structures Hope this helps!