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ICD-10-CM Code Q89.3
Situs inversus

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

Q89.3 is a billable ICD code used to specify a diagnosis of situs inversus. 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 Q893 is used to code Situs inversus

Situs inversus (also called situs transversus or oppositus) is a congenital condition in which the major visceral organs are reversed or mirrored from their normal positions. The normal arrangement of internal organs is known as situs solitus while situs inversus is generally the mirror image of situs solitus. Although cardiac problems are more common than in the general population, most people with situs inversus have no medical symptoms or complications resulting from the condition, and until the advent of modern medicine it was usually undiagnosed.

Specialty: Medical Genetics
MeSH Code: D012857
ICD 9 Code: 759.3

Situs inversus causes the positions of the heart and lungs to be mirrored.

Source: Wikipedia

Coding Notes for Q89.3 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.
Dextrocardia with situs inversus
Mirror-image atrial arrangement with situs inversus
Situs inversus or transversus abdominalis
Situs inversus or transversus thoracis
Transposition of abdominal viscera
Transposition of thoracic viscera
Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
Dextrocardia NOS - instead, use code Q24.0

MS-DRG Mapping

  • DRG Group #393-395 - Other digestive system diagnoses with MCC.
  • DRG Group #393-395 - Other digestive system diagnoses with CC.
  • DRG Group #393-395 - Other digestive system diagnoses without CC or MCC.

Related Concepts SNOMET-CT

  • Kartagener syndrome (disorder)
  • Mirror-imaged heart (disorder)

ICD-10-CM Alphabetical Index References for 'Q89.3 - Situs inversus'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code Q89.3. Click on any term below to browse the alphabetical index.

Sinusitis-bronchiectasis-situs inversus(syndrome) (triad) (Q89.3)
Situs inversus or transversus(abdominalis) (thoracis) (Q89.3)
Kartagener's syndrome or triad(sinusitis, bronchiectasis, situs inversus) (Q89.3)


Situs inversus (exact match)

This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 759.3 was previously used, Q89.3 is the appropriate modern ICD10 code.

Parent Code: Q89 - Other congenital malformations, not elsewhere classified

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/Q893