ICD-9-CM Code 491.21 to ICD-10-CM
ICD-10 Equivalent of 491.21:
As of October 2015, ICD-9 codes are no longer used for medical coding. Instead, use this equivalent ICD-10-CM code, which is an approximate match to ICD-9 code 491.21:
Historical Information for ICD-9 Code 491.21
BILLABLE ICD-9 CODE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.Long ICD9 Description: Obstructive chronic bronchitis with (acute) exacerbation
Short ICD9 Description: Obs chr bronc w(ac) exac
Parent Code: 491.2 - Obstructive chronic bronchitis