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70-year-old female patient presents with a complaint of right knee pain with weight-bearing activities. She is also developing pain at rest. She denies any recent injury. There is pain with stair climbing and start-up pain. AP, lateral, and sunrise views of the right knee are ordered and interpreted. The diagnosis is right knee pain secondary to underlying localized degenerative arthritis. What ICD-10-CM code(s) is/are reported?