icd-9 for knee sprain
Diagnosis Code 844.9. ICD-9: 844.9. Short Description: Sprain of knee & leg NOS. Long Description: Sprains and strains of unspecified site of knee and leg. This is the 2014 version of the ICD-9-CM diagnosis code 844.9. Code Classification. Injury and poisoning (800â999) Sprains and strains of joints and adjacent muscles (840-848) 844 Sprains and strains of knee and leg.