{"code":"S21.002A","type":"code","title":"Unspecified open wound of left breast, initial encounter","codeAlso":["any associated injury, such as:","injury of heart (S26.-)","injury of intrathoracic organs (S27.-)","rib fracture (S22.3-, S22.4-)","spinal cord injury (S24.0-, S24.1-)","traumatic hemopneumothorax (S27.3)","traumatic hemothorax (S27.1)","traumatic pneumothorax (S27.0)","wound infection"],"includes":["injuries of breast","injuries of chest (wall)","injuries of interscapular area"],"modern_v":"official26","codeFirst":[],"excludes1":["traumatic amputation (partial) of thorax (S28.1)"],"excludes2":["burns and corrosions (T20-T32)","effects of foreign body in bronchus (T17.5)","effects of foreign body in esophagus (T18.1)","effects of foreign body in lung (T17.8)","effects of foreign body in trachea (T17.4)","frostbite (T33-T34)","injuries of axilla","injuries of clavicle","injuries of scapular region","injuries of shoulder","insect bite or sting, venomous (T63.4)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["S21","S21.0","S21.001","S21.001A","S21.001D","S21.001S","S21.002","S21.002D","S21.002S","S21.009","S21.009A","S21.009D","S21.009S","S21.011","S21.011A","S21.011D","S21.011S","S21.012","S21.012A","S21.012D","S21.012S","S21.019","S21.019A","S21.019D","S21.019S","S21.021","S21.021A","S21.021D","S21.021S","S21.022","S21.022A","S21.022D","S21.022S","S21.029","S21.029A","S21.029D","S21.029S","S21.031","S21.031A","S21.031D","S21.031S","S21.032","S21.032A","S21.032D","S21.032S","S21.039","S21.039A","S21.039D","S21.039S","S21.041","S21.041A","S21.041D","S21.041S","S21.042","S21.042A","S21.042D","S21.042S","S21.049","S21.049A","S21.049D","S21.049S","S21.051","S21.051A","S21.051D","S21.051S","S21.052","S21.052A","S21.052D","S21.052S","S21.059","S21.059A","S21.059D","S21.059S","S21.1","S21.101","S21.101A","S21.101D","S21.101S","S21.102","S21.102A","S21.102D","S21.102S","S21.109","S21.109A","S21.109D","S21.109S","S21.111","S21.111A","S21.111D","S21.111S","S21.112","S21.112A"],"inclusionTerms":[],"sibling_titles":{"code":"S21.112A","title":"Laceration without foreign body of left front wall of thorax without penetration into thoracic cavity, initial encounter","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Unspecified open wound of left breast, initial encounter is a billable ICD-10-CM diagnosis code (S21.002A). Includes: injuries of breast; injuries of chest (wall); injuries of interscapular area. Excludes1 (not coded here): traumatic amputation (partial) of thorax (S28.1). Excludes2 (not included here): burns and corrosions (T20-T32); effects of foreign body in bronchus (T17.5); effects of foreign body in esophagus (T18.1); effects of foreign body in lung (T17.","officialDefinition":"Unspecified open wound of left breast, initial encounter is a billable ICD-10-CM diagnosis code (S21.002A). Includes: injuries of breast; injuries of chest (wall); injuries of interscapular area. Excludes1 (not coded here): traumatic amputation (partial) of thorax (S28.1). Excludes2 (not included here): burns and corrosions (T20-T32); effects of foreign body in bronchus (T17.5); effects of foreign body in esophagus (T18.1); effects of foreign body in lung (T17.8); effects of foreign body in trachea (T17.4); frostbite (T33-T34); injuries of axilla; injuries of clavicle; injuries of scapular region; injuries of shoulder; insect bite or sting, venomous (T63.4). Code also: any associated injury, such as:; injury of heart (S26.-); injury of intrathoracic organs (S27.-); rib fracture (S22.3-, S22.4-); spinal cord injury (S24.0-, S24.1-); traumatic hemopneumothorax (S27.3); traumatic hemothorax (S27.1); traumatic pneumothorax (S27.0); wound infection. 7th character: The appropriate 7th character is to be added to each code from category S21.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from category S21"],"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":""}