ICD-10-CM Code Q85.1
Tuberous sclerosis
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.Q85.1 is a billable ICD code used to specify a diagnosis of tuberous sclerosis. 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 Q851 is used to code Tuberous sclerosis
Tuberous sclerosis or tuberous sclerosis complex (TSC) is a rare multi-system genetic disease that causes benign tumors to grow in the brain and on other vital organs such as the kidneys, heart, eyes, lungs, and skin. A combination of symptoms may include seizures, intellectual disability, developmental delay, behavioral problems, skin abnormalities, lung and kidney disease. TSC is caused by a mutation of either of two genes, TSC1 and TSC2, which code for the proteins hamartin and tuberin respectively. These proteins act as tumor growth suppressors, agents that regulate cell proliferation and differentiation.
| Specialty: | Neurology, Medical Genetics |
| MeSH Code: | D014402 |
| ICD 9 Code: | 759.5 |
A case of tuberous sclerosis showing facial angiofibromas in characteristic butterfly pattern
Coding Notes for Q85.1 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. - Bourneville's disease
- Epiloia
MS-DRG Mapping
- DRG Group #091-093 - Other disorders of nervous system with MCC.
- DRG Group #091-093 - Other disorders of nervous system with CC.
- DRG Group #091-093 - Other disorders of nervous system without CC or MCC.
Related Concepts SNOMET-CT
- Periungual fibroma in tuberous sclerosis (disorder)
ICD-10-CM Alphabetical Index References for 'Q85.1 - Tuberous sclerosis'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code Q85.1. 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 759.5 was previously used, Q85.1 is the appropriate modern ICD10 code.
Parent Code: Q85 - Phakomatoses, not elsewhere classified