{"code":"M84.346K","type":"code","title":"Stress fracture, unspecified finger(s), subsequent encounter for fracture with nonunion","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["pathological fracture NOS (M84.4.-)","pathological fracture due to osteoporosis (M80.-)","traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-)"],"excludes2":["personal history of (healed) stress (fatigue) fracture (Z87.312)","stress fracture of vertebra (M48.4-)","traumatic fracture of bone-see fracture, by site"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":["external cause code(s) to identify the cause of the stress fracture"],"clinicalDefinition":"Stress fracture, unspecified finger(s), subsequent encounter for fracture with nonunion is a billable ICD-10-CM diagnosis code (M84.346K). Excludes1 (not coded here): pathological fracture NOS (M84.4.-); pathological fracture due to osteoporosis (M80.-); traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-). Excludes2 (not included here): personal history of (healed) stress (fatigue) fracture (Z87.312); stress fracture of vertebra (M48.","officialDefinition":"Stress fracture, unspecified finger(s), subsequent encounter for fracture with nonunion is a billable ICD-10-CM diagnosis code (M84.346K). Excludes1 (not coded here): pathological fracture NOS (M84.4.-); pathological fracture due to osteoporosis (M80.-); traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-). Excludes2 (not included here): personal history of (healed) stress (fatigue) fracture (Z87.312); stress fracture of vertebra (M48.4-); traumatic fracture of bone-see fracture, by site. Use additional code: external cause code(s) to identify the cause of the stress fracture. 7th character: The appropriate 7th character is to be added to each code from subcategory M84.3:.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from subcategory M84.3:"],"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":"","noteProvenance":{"traumatic fracture of bone-see fracture, by site":"M84","pathological fracture NOS (M84.4.-)":"M84.3","pathological fracture due to osteoporosis (M80.-)":"M84.3","traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-)":"M84.3","personal history of (healed) stress (fatigue) fracture (Z87.312)":"M84.3","stress fracture of vertebra (M48.4-)":"M84.3","external cause code(s) to identify the cause of the stress fracture":"M84.3","Fatigue fracture":"M84.3","March fracture":"M84.3","Stress fracture NOS":"M84.3","Stress reaction":"M84.3"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}