ICD-10-CM Code Q23.4
Hypoplastic left heart syndrome
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.Q23.4 is a billable ICD code used to specify a diagnosis of hypoplastic left heart syndrome. 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 Q234 is used to code Hypoplastic left heart syndrome
Hypoplastic left heart syndrome (HLHS) is a rare congenital heart defect in which the left heart is severely underdeveloped. The International Working Group for Mapping and Coding of Nomenclatures for Paediatric and Congenital Heart Disease defined HLHS as
| Specialty: | Medical Genetics |
| ICD 9 Code: | 746.7 |
Illustration of heart suffering from Hypoplastic left heart syndrome
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.
ICD-10-CM Alphabetical Index References for 'Q23.4 - Hypoplastic left heart syndrome'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code Q23.4. 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 746.7 was previously used, Q23.4 is the appropriate modern ICD10 code.
Parent Code: Q23 - Congenital malformations of aortic and mitral valves