{"code":"S83.121A","type":"code","title":"Posterior subluxation of proximal end of tibia, right knee, initial encounter","codeAlso":["any associated open wound"],"includes":["avulsion of joint or ligament of knee","laceration of cartilage, joint or ligament of knee","sprain of cartilage, joint or ligament of knee","traumatic hemarthrosis of joint or ligament of knee","traumatic rupture of joint or ligament of knee","traumatic subluxation of joint or ligament of knee","traumatic tear of joint or ligament of knee"],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["instability of knee prosthesis (T84.022, T84.023)","derangement of patella (M22.0-M22.3)","injury of patellar ligament (tendon) (S76.1-)","internal derangement of knee (M23.-)","old dislocation of knee (M24.36)","pathological dislocation of knee (M24.36)","recurrent dislocation of knee (M22.0)","strain of muscle, fascia and tendon of lower leg (S86.-)","burns and corrosions (T20-T32)","frostbite (T33-T34)","injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)","insect bite or sting, venomous (T63.4)"],"isBillable":true,"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Posterior subluxation of proximal end of tibia, right knee, initial encounter is a billable ICD-10-CM diagnosis code (S83.121A). Includes: avulsion of joint or ligament of knee; laceration of cartilage, joint or ligament of knee; sprain of cartilage, joint or ligament of knee; traumatic hemarthrosis of joint or ligament of knee; traumatic rupture of joint or ligament of knee; traumatic subluxation of joint or ligament of knee; traumatic tear of joint or ligament of knee.","officialDefinition":"Posterior subluxation of proximal end of tibia, right knee, initial encounter is a billable ICD-10-CM diagnosis code (S83.121A). Includes: avulsion of joint or ligament of knee; laceration of cartilage, joint or ligament of knee; sprain of cartilage, joint or ligament of knee; traumatic hemarthrosis of joint or ligament of knee; traumatic rupture of joint or ligament of knee; traumatic subluxation of joint or ligament of knee; traumatic tear of joint or ligament of knee. Excludes2 (not included here): instability of knee prosthesis (T84.022, T84.023); derangement of patella (M22.0-M22.3); injury of patellar ligament (tendon) (S76.1-); internal derangement of knee (M23.-); old dislocation of knee (M24.36); pathological dislocation of knee (M24.36); recurrent dislocation of knee (M22.0); strain of muscle, fascia and tendon of lower leg (S86.-); burns and corrosions (T20-T32); frostbite (T33-T34); injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99); insect bite or sting, venomous (T63.4). Code also: any associated open wound. 7th character: The appropriate 7th character is to be added to each code from category S83.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from category S83"],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}