C34.2, C78.89 Sickle-cell crisis with acute chest syndrome. ICD-10-CM Code: D57.01 Bifascicular block. ICD-10-CM Code: I45.2 Sick sinus syndrome.
The left bundle branches into a left posterior fascicle and a left anterior fascicle. Bifascicular block means the heart shows impaired conduction in two fascicles of the right and left bundles.
ICD-10-CM is used to code diagnoses and procedures. Words such as "with'' "due to" and "in" express relationship between the main term or subterm indicating an associated condition or etiology. ICD-10-CM will be required for all encounters on October 1, 2015.
Atrioventricular (av) block (heart rhythm condition); Atrioventricular block; Atrioventricular block (heart beat disorder); Atrioventricular block, incomplete; Atrioventricular block, partial; Partial atrioventricular block; Postoperative atrioventricular block ICD-10-CM Diagnosis Code H34.233 [convert to ICD-9-CM]
Bifascicular block means the heart shows impaired conduction in two fascicles of the right and left bundles.
ICD-9 coding rules: Your choice between 426.51 and 426.52 depends on whether the patient has a left posterior or left anterior fascicular block in addition to right bundle branch block (RBBB). For other bilateral bundle branch blocks, including bifascicular block NOS, bilateral bundle branch block NOS, and right bundle branch with left bundle branch block (incomplete) (main stem), you should use 426.53.
When ICD-10-CM becomes effective on Oct. 1, 2014, you’ll have fewer options for reporting bifascicular blocks. Here are the details you’ll need to properly apply the new code.
Documentation: The physician will need to be sure to indicate that the block is bifascicular, as that is the key indicator for I45.2.