Any patient that have the following ICD codes  will be classified as a 1 for yes.  If none of the codes below are present, the patient will be classified as a 0 .  If there are no ICD codes, then the data will be classified as missing and reported as -999.
 
Data source:
aims_billingdiagnoses
 
Using the DiagnosisCleaned phenotype, this collation looks as the following timeframe:
Prior time frame – 365 days (before the operation date)
Post time frame – extends 7 days after service end
 
	
		
			|   | ICD-9 Codes | Description | ICD-10 Code conversion (derived, non-standardized)* | 
		
			|   Components1 | 286 286.% | Various coagulation defects and DIC | D6[5-8] D6[5-8].% | 
		
			| 287.[13-5]% | Platelet defects, thrombocytopenia | D69[13-6].% |