K08.42
Partial loss of teeth due to periodontal diseases
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 13 never code together
K08code
K08.4code
K00-K95chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 1
K08.4code
Inclusion terms
- Acquired loss of teeth, partial
Index entries leading here filed at null
No alphabetic index entry points at this code.
Alongside this code 4 same parent — K08.4
Subordinate codes 5
K08.421 Partial loss of teeth due to periodontal diseases, class I K08.422 Partial loss of teeth due to periodontal diseases, class II K08.423 Partial loss of teeth due to periodontal diseases, class III K08.424 Partial loss of teeth due to periodontal diseases, class IV K08.429 Partial loss of teeth due to periodontal dis, unsp class
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.