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ICD-10-CM Code Z91.09
Other allergy status, other than to drugs and biological substances

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
POA Exempt
POA Exempt Code
The Center for Medicare & Medicaid Services (CMS) requires medical coders to indicate whether or not a condition was present at the time of admission, in order to properly assign MS-DRG codes. This "Present On Admission" (POA) indicator is recorded on CMS form 4010A.
| ICD-10 from 2011 - 2016

Z91.09 is a billable ICD code used to specify a diagnosis of other allergy status, other than to drugs and biological substances. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

POA Indicators on CMS form 4010A are as follows:

IndicatorMeaningCMS Will Pay CC/MCC DRG Costs
YDiagnosis was present at time of inpatient admissionYes
NDiagnosis was not present at time of inpatient admissionNo
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.No
WClinically undetermined. Provider unable to clinically determine whether the condition was present at the time of inpatient admission.Yes
1Exempt from POA reportingNo


MS-DRG Mapping

  • DRG Group #951 - Other factors influencing health status.

Related Concepts SNOMET-CT

  • Allergy to yeast (disorder)

Coding Advice SNOMET-CT

  • Consider additional code to identify specific condition or disease

ICD-10-CM Alphabetical Index References for 'Z91.09 - Other allergy status, other than to drugs and biological substances'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code Z91.09. Click on any term below to browse the alphabetical index.

Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)

Other allergy, other than to medicinal agents (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code Z91.09 and a single ICD9 code, V15.09 is an approximate match for comparison and conversion purposes.


Parent Code: Z91.0 - Allergy status, other than to drugs and biological substances

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/Z9109