Sick Sinus Syndrome ICD-10-CM codes
ICD-10-CM codes for sick sinus syndrome (sinus node dysfunction), including tachy-brady syndrome, with related bradycardia and pacemaker codes.
6 codes, 6 billable. FY2027, valid from October 1, 2026. In chapter 9: Diseases of the Circulatory System.
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How to code Sick Sinus Syndrome
I49.5 covers sick sinus syndrome, sinus node dysfunction, and tachycardia-bradycardia syndrome. Sinus bradycardia without a diagnosis of sinus node disease is R00.1, and complete heart block is I44.2.
After pacemaker placement, Z95.0 reports the presence of the device. Pacemaker interrogation or battery check visits use Z45.010, and adjustment of other parts of the device is Z45.018.
All Sick Sinus Syndrome codes
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