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ICD-9 E9820 Code Mapping

Terms & Definitions

Alternative: Single ICD-10 code reproduces the complete meaning of one ICD-9 code. Cluster: Multiple ICD-10 codes representing single ICD-9 code. At times it requires multiple ICD-10 codes combined to reproduce the complete meaning of one ICD-9 code. Mapping Types: "Single Code-to-Single Code", "Single Code-to-Cluster", "Cluster-to-Single Code". Note: More than one ICD-10 code (cluster) may be a valid translation of a given ICD-9 code. Which one of those ICD-10 codes (clusters) is the most correct translation must be determined based on the clinical case.

ICD-9 E9820 to ICD-10 Mapping Options

Recommended Mapping (based on statistical analysis)
Source ICD-9 Mapping Type Target ICD-10
986 (Diagnosis) - Tox eff carbon monoxide (Toxic effect of carbon monoxide)
with
E9820 (Diagnosis) - Undeter pois-exhaust gas (Poisoning by motor vehicle exhaust gas, undetermined whether accidentally or purposely inflicted) 		Cluster To Single T5804XA (Diagnosis) - Toxic effect of carb monx from mtr veh exhaust, undet, init (Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, initial encounter)
CMS/CDC General Equivalence Mappings
986 (Diagnosis) - Tox eff carbon monoxide (Toxic effect of carbon monoxide)
with
E9820 (Diagnosis) - Undeter pois-exhaust gas (Poisoning by motor vehicle exhaust gas, undetermined whether accidentally or purposely inflicted) 		Cluster To Single Alternative #1: T5804XA (Diagnosis) - Toxic effect of carb monx from mtr veh exhaust, undet, init (Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, initial encounter)