Specific code 2015 ICD-9-CM Diagnosis Code 717.7
Chondromalacia of patella
  • 2015
  • Billable Code
  • ICD-9-CM 717.7 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 717.7 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Chondromalacia of bilat knees
  • Chondromalacia of bilat patella
  • Chondromalacia of bilateral knees
  • Chondromalacia of bilateral patella
  • Chondromalacia of bilateral patellas
  • Chondromalacia of knee
  • Chondromalacia of L patella
  • Chondromalacia of left knee
  • Chondromalacia of left patella
  • Chondromalacia of left patella (kneecap)
  • Chondromalacia of R patella
  • Chondromalacia of right knee
  • Chondromalacia of right patella
  • Chondromalacia of right patella (kneecap)
  • Chondromalacia patella
  • Chondromalacia patella (kneecap)
Clinical Information
  • A degeneration of the articular cartilage of the patella, caused by a decrease in sulfated mucopolysaccharides in the ground substance. When accompanied by pain, it is sometimes considered part of or confused with patellofemoral pain syndrome
Applies To
  • Chondromalacia patellae
  • Degeneration [softening] of articular cartilage of patella
Convert to ICD-10-CM: 717.7 converts approximately to:
  • 2015 ICD-10-CM M22.40 Chondromalacia patellae, unspecified knee
ICD-9-CM Volume 2 Index entries containing back-references to 717.7:
  • Chondritis (purulent) 733.99
    • patella, posttraumatic 717.7
    • posttraumatica patellae 717.7
  • Chondromalacia 733.92
    • knee 717.7
    • patella, patellae 717.7
  • Degeneration, degenerative
    • articular cartilage NEC (see also Disorder, cartilage, articular) 718.0
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 717.7 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.