M85.5
M85.5: Aneurysmal bone cyst
Non-billable headerICD-10-CM
M85.5 is a non-billable header ICD-10-CM code for aneurysmal bone cyst. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- aneurysmal cyst of jaw (M27.4)
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead M85.5
10 child codes. Green means billable.
- M85.50Aneurysmal bone cyst, unspecified site
- M85.51Aneurysmal bone cyst, shoulder
- M85.52Aneurysmal bone cyst, upper arm
- M85.53Aneurysmal bone cyst, forearm
- M85.54Aneurysmal bone cyst, hand
- M85.55Aneurysmal bone cyst, thigh
- M85.56Aneurysmal bone cyst, lower leg
- M85.57Aneurysmal bone cyst, ankle and foot
- M85.58Aneurysmal bone cyst, other site
- M85.59Aneurysmal bone cyst, multiple sites