ICD-10-CM Code Q84.6
Other congenital malformations of nails
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.Q84.6 is a billable ICD code used to specify a diagnosis of other congenital malformations of nails. 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 Q846 is used to code Koilonychia
Koilonychia (from the Greek: koilos-, hollow, onikh-, nail), also known as spoon nails,:782 is a nail disease that can be a sign of hypochromic anemia, especially iron-deficiency anemia.:656 " It refers to abnormally thin nails (usually of the hand) which have lost their convexity, becoming flat or even concave in shape. In a sense, koilonychia is the opposite of nail clubbing. In early stages nails may be brittle and chip or break easily.
| Specialty: | Medical Genetics |
| MeSH Codes: | , |
| ICD 9 Codes: | 703.8, 757.5 |
Coding Notes for Q84.6 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. - Congenital clubnail
- Congenital koilonychia
- Congenital malformation of nail NOS
MS-DRG Mapping
- DRG Group #606-607 - Minor skin disorders with MCC.
- DRG Group #606-607 - Minor skin disorders without MCC.
Related Concepts SNOMET-CT
- Congenital koilonychia (disorder)
ICD-10-CM Alphabetical Index References for 'Q84.6 - Other congenital malformations of nails'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code Q84.6. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
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 Q84.6 and a single ICD9 code, 757.5 is an approximate match for comparison and conversion purposes.
Parent Code: Q84 - Other congenital malformations of integument