ICD-9-CM Code 656.21 to ICD-10-CM
ICD-10 Equivalent of 656.21:
As of October 2015, ICD-9 codes are no longer used for medical coding. Instead, use the following six equivalent ICD-10-CM codes, which are an approximate match to ICD-9 code 656.21:
- ICD-10 Code O361110, Maternal care for Anti-A sensitization, first trimester, not applicable or unspecified (billable)
- ICD-10 Code O361120, Maternal care for Anti-A sensitization, second trimester, not applicable or unspecified (billable)
- ICD-10 Code O361130, Maternal care for Anti-A sensitization, third trimester, not applicable or unspecified (billable)
- ICD-10 Code O361910, Maternal care for other isoimmunization, first trimester, not applicable or unspecified (billable)
- ICD-10 Code O361920, Maternal care for other isoimmunization, second trimester, not applicable or unspecified (billable)
- ICD-10 Code O361930, Maternal care for other isoimmunization, third trimester, not applicable or unspecified (billable)
Historical Information for ICD-9 Code 656.21
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: Isoimmunization from other and unspecified blood-group incompatibility, delivered, with or without mention of antepartum condition
Short ICD9 Description: Abo isoimmunizat-deliver
Parent Code: 656.2 - Isoimmunization from other and unspecified blood-group incompatibility affecting management of mother