Chondromalacia patellae
Chondromalacia patellae
M22.4 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.
Softening or breakdown of the cartilage on the underside of the kneecap, coded without specification of which knee is affected.
Softening and surface breakdown of the cartilage on the posterior face of the right patella, classified under disorders of the patella in the musculoskeletal chapter.
Degenerative softening and breakdown of the articular cartilage on the underside of the left kneecap (patella), classified under patellar disorders in ICD-10-CM Chapter 13.