K08.121: Complete loss of teeth due to periodontal diseases, class I
K08.121 is the billable ICD-10-CM diagnosis code for Complete loss of teeth due to periodontal diseases, class I. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code K08.121?
K08.121 is the ICD-10-CM diagnosis code for Complete loss of teeth due to periodontal diseases, class I. It belongs to category K08 (Other disorders of teeth and supporting structures).
Is K08.121 a billable code?
Yes. K08.121 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does K08.121 belong to?
K08.121 is part of ICD-10-CM category K08 — Other disorders of teeth and supporting structures, which has 146 billable codes.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free