{"code":"S44.00XS","type":"code","title":"Injury of ulnar nerve at upper arm level, unspecified arm, sequela","isBillable":true,"modern_v":"official26","source":"CMS FY2026 icd10cm_order_2026.txt (restored 2026-08-08 after import gap)","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":"","officialDefinition":"Injury of ulnar nerve at upper arm level, unspecified arm, sequela (S44.00XS) is a billable ICD-10-CM diagnosis code, valid for claim submission. It is classified under category S44 (Injury of nerves at shoulder and upper arm level), within the Injuries to the shoulder and upper arm (S40-S49) block, within Chapter 19, Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88). The official tabular list attaches no additional inclusion or exclusion notes to this code.","clinicalDefinition":"Injury of ulnar nerve at upper arm level, unspecified arm, sequela (S44.00XS) is a billable ICD-10-CM diagnosis code, valid for claim submission. It is classified under category S44 (Injury of nerves at shoulder and upper arm level), within the Injuries to the shoulder and upper arm (S40-S49) block, within Chapter 19, Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88). The official tabular list attaches no additional inclusion or exclusion notes to this code."}