K08.421Billable
Partial loss of teeth due to periodontal diseases, class I
- Chapter
- 11. Diseases of the digestive system
- Category
- K08
- Effective date
- October 1, 2026
Related codes in category K08
K08Other disorders of teeth and supporting structuresK08.0Exfoliation of teeth due to systemic causesYesK08.1Complete loss of teethK08.10Complete loss of teeth, unspecified causeK08.101Complete loss of teeth, unspecified cause, class IYesK08.102Complete loss of teeth, unspecified cause, class IIYesK08.103Complete loss of teeth, unspecified cause, class IIIYesK08.104Complete loss of teeth, unspecified cause, class IVYesK08.109Complete loss of teeth, unspecified cause, unspecified classYesK08.11Complete loss of teeth due to traumaK08.111Complete loss of teeth due to trauma, class IYesK08.112Complete loss of teeth due to trauma, class IIYes
Frequently asked questions
What is ICD-10 code K08.421?
K08.421 is an ICD-10-CM diagnosis code for Partial loss of teeth due to periodontal diseases, class I.
Is K08.421 a billable code?
Yes. K08.421 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is K08.421 in?
K08.421 falls under Chapter 11: Diseases of the digestive system.
When did K08.421 become effective?
K08.421 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to K08.421?
K08.421 belongs to category K08, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.