ICD-10-CM Code Q89.4
Conjoined twins
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.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.Q89.4 is a billable ICD code used to specify a diagnosis of conjoined twins. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
POA Indicators on CMS form 4010A are as follows:
| Indicator | Meaning | CMS Will Pay CC/MCC DRG Costs |
|---|---|---|
| Y | Diagnosis was present at time of inpatient admission | Yes |
| N | Diagnosis was not present at time of inpatient admission | No |
| U | Documentation insufficient to determine if the condition was present at the time of inpatient admission. | No |
| W | Clinically undetermined. Provider unable to clinically determine whether the condition was present at the time of inpatient admission. | Yes |
| 1 | Exempt from POA reporting | No |
The ICD code Q894 is used to code Conjoined twins
Conjoined twins are identical twins joined in utero. An extremely rare phenomenon, the occurrence is estimated to range from 1 in 49,000 births to 1 in 189,000 births, with a somewhat higher incidence in Southeast Asia, Africa and Brazil. Approximately half are stillborn, and an additional one-third die within 24 hours. Most live births are female, with a ratio of 3:1. Most stillborns are male.
| Specialty: | Medical Genetics |
| MeSH Codes: | D014428, D014428 |
| ICD 9 Codes: | 678.1, 759.4 |
X-ray of joined twins, cephalothoracopagus.
Coding Notes for Q89.4 Info for medical coders on how to properly use this ICD-10 code
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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. - Craniopagus
- Dicephaly
- Pygopagus
- Thoracopagus
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.
- DRG Group #793 - Full term neonate with major problems.
ICD-10-CM Alphabetical Index References for 'Q89.4 - Conjoined twins'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code Q89.4. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
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 759.4 was previously used, Q89.4 is the appropriate modern ICD10 code.
Parent Code: Q89 - Other congenital malformations, not elsewhere classified