Table 2:

Patient Safety Indicators with ICD-9-CM codes with no mapping to ICD-10-CM

Patient Safety Indicators	Explanation in PSI algorithm in ICD-10-CM
PSI-03, PSI-07, PSI-12, PSI-22: Pressure ulcer, Central venous catheter, Postoperative pulmonary embolism or deep vein thrombosis, Iatrogenic pneumothorax	Four-digit ICD-9-CM codes frequently used in billing practice are included in PSI calculations; however official CMS guidelines require five-digit ICD-9-CM codes. GEMs are only provided for official reimbursable codes. Concepts map forward to ICD-10-CM with additional detail
EXP-1: Rate of complications of anesthesia	EXP-1 has become discontinued in ICD-10-CM
PSI-16 and PSI-26: Transfusion	PSI-16 and PSI-26 cause of no translation was due to a wide spread use of parent codes
PSI-5 and PSI 21: Complications of foreign body during procedure	All 10 ICD-9-CM codes with no GEM mapping to ICD-10-CM. In ICD-10-CM, 219 new codes related to foreign body left in procedure. Complete restructure of concept focused on complications: unspecified, adhesions, obstruction, perforation, other complications, and acute reaction (see figure 4). Only initial encounter is included in PSI ICD-10-CM
PSI-15 and PSI-25: Accidental puncture or laceration rate	10 ICD-9-CM codes with no official mapping to ICD-10-CM. In ICD-10-CM, 98 codes related to puncture, laceration. Complete restructure of concept focuses on injured organ first instead of procedure

CMS, Centers for Medicaid/Medicare Services; GEMs, General Equivalence Mappings; ICD-9-CM, International Classification of Diseases, Ninth Edition, Clinical Modification; PSI, Patient Safety Indicator.