Cumulative Official WHO Updates to ICD 10 - 1996 - 2001

There are 11,054 different ICD-10 codes in the principal diagnosis. 2017 is all in ICD10. PRESENT ON ADMISSION–PRINCIPAL DIAGNOSIS & OTHER (POA1-POA9) There are 106,109 missing values in the POA of the principal diagnosis field. Some ICD-9 codes are exempt and so null is a valid qualifier. ................
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