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ICD-10-CM Code Q20.5
Discordant atrioventricular connection

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

Q20.5 is a billable ICD code used to specify a diagnosis of discordant atrioventricular connection. 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

The ICD code Q205 is used to code Levo-Transposition of the great arteries

levo-Transposition of the great arteries (L-Transposition of the great arteries, levo-TGA, or l-TGA), also commonly referred to as congenitally corrected transposition of the great arteries (CC-TGA), is an acyanotic congenital heart defect (CHD) in which the primary arteries (the aorta and the pulmonary artery) are transposed, with the aorta anterior and to the left of the pulmonary artery; the morphological left and right ventricles with their corresponding atrioventricular valves are also transposed.

Specialty: Medical Genetics
ICD 9 Code: 745.12
Source: Wikipedia

Coding Notes for Q20.5 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Corrected transposition
Ventricular inversion

MS-DRG Mapping

  • DRG Group #306-307 - Cardiac congenital and valvular disorders with MCC.
  • DRG Group #306-307 - Cardiac congenital and valvular disorders without MCC.

Related Concepts SNOMET-CT

  • Corrected transposition of great vessels (disorder)
  • L - transposition of the great vessels (disorder)

ICD-10-CM Alphabetical Index References for 'Q20.5 - Discordant atrioventricular connection'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code Q20.5. Click on any term below to browse the alphabetical index.

Levotransposition (Q20.5)
Corrected transposition (Q20.5)


Corrected transposition of great vessels (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 Q20.5 and a single ICD9 code, 745.12 is an approximate match for comparison and conversion purposes.

Parent Code: Q20 - Congenital malformations of cardiac chambers and connections

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/Q205