ICD-10 Code
International Classification of Diseases, 10th Revision
Oct 17, 2017

See: Cysts of oral region, not elsewhere classified

K09 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Cysts of oral region, not elsewhere classified
Includes
  • lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesion
Excludes2

More specific codes for Cysts of oral region, not elsewhere classified

  • K09.0 - Developmental odontogenic cysts
  • K09.1 - Developmental (nonodontogenic) cysts of oral region
  • K09.8 - Other cysts of oral region, not elsewhere classified
  • K09.9 - Cyst of oral region, unspecified
See also ICD 10 code for
Back to K09
See the 2017 ICD-10-CM Coding Guidelines.

Questions related to K09 Cysts of oral region, not elsewhere classified

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.