ICD-9 64220 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 64220 to ICD-10 Mapping Options

Recommended Mapping (based on statistical analysis)
Source ICD-9	Mapping Type	Target ICD-10
64220 (Diagnosis) - Old hyperten preg-unspec (Other pre-existing hypertension complicating pregnancy, childbirth, and the puerperium, unspecified as to episode of care or not applicable)	Single To Single	O10119 (Diagnosis) - Pre-exist hyp heart disease comp pregnancy, unsp trimester (Pre-existing hypertensive heart disease complicating pregnancy, unspecified trimester)
CMS/CDC General Equivalence Mappings
64220 (Diagnosis) - Old hyperten preg-unspec (Other pre-existing hypertension complicating pregnancy, childbirth, and the puerperium, unspecified as to episode of care or not applicable)	Single To Single	Alternative #1: O10119 (Diagnosis) - Pre-exist hyp heart disease comp pregnancy, unsp trimester (Pre-existing hypertensive heart disease complicating pregnancy, unspecified trimester)
	Single To Single	Alternative #2: O10219 (Diagnosis) - Pre-exist hyp chronic kidney disease comp preg, unsp tri (Pre-existing hypertensive chronic kidney disease complicating pregnancy, unspecified trimester)
	Single To Single	Alternative #3: O10319 (Diagnosis) - Pre-exist hyp heart and chr kidney dis comp preg, unsp tri (Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, unspecified trimester)
	Single To Single	Alternative #4: O119 (Diagnosis) - Pre-existing hypertension with pre-eclampsia, unsp trimester (Pre-existing hypertension with pre-eclampsia, unspecified trimester)