E74.05: Lysosome-associated membrane protein 2 [LAMP2] deficiency
E74.05 is a billable, specific ICD-10-CM code for lysosome-associated membrane protein 2 [lamp2] deficiency. It is valid for submission on a claim.
Check E74.05 with the rest of the claim: free scrubberCode also
Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Danon disease
Risk adjustment
E74.05 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 50 Amyloidosis, Porphyria, and Other Specified Metabolic Disorders0.648 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
E74.05 is named in 7 Medicare coverage policies: 7 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52494High Frequency Chest Wall Oscillation Devices - Policy Article
- A52510Mechanical In-exsufflation Devices - Policy Article
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A54095Billing and Coding: Nerve Conduction Studies and Electromyography
Alphabetic index entries that lead here
- Deficiency, deficient›lysosome-associated membrane protein 2 [LAMP2]
- Disease, diseased›Antopol
- Disease, diseased›Danon
- Disease, diseased›glycogen storage›type IIB
- Disease, diseased›glycogen storage›lysosomal›without acid maltase deficiency
Code history
Unchanged in every release from FY2024 to FY2027.