Unilateral primary osteoarthritis of knee
Unilateral primary osteoarthritis of knee
M17.1 is a header (parent) code in the ICD-10-CM hierarchy. It is not billable for claim submission. Use one of the billable child codes listed below.
Billable codes in this category
Each of the codes below is billable. Choose the one that most accurately describes the patient's diagnosis.
Unilateral primary osteoarthritis affecting one knee where the specific side (right or left) has not been documented or identified by the treating provider.
M17.11 identifies idiopathic (primary) osteoarthritis affecting the right knee only, with no contralateral involvement and no traumatic or secondary cause documented.
M17.12 identifies degenerative joint disease confined to the left knee that arises idiopathically — not from prior injury, inflammatory arthritis, or another underlying condition.
Inclusion & exclusion notes
Includes
- Primary osteoarthritis of knee NOS