E83.31: Familial hypophosphatemia
E83.31 is a billable, specific ICD-10-CM code for familial hypophosphatemia. It is valid for submission on a claim.
Check E83.31 with the rest of the claim: free scrubberExcludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- vitamin D-deficiency rickets (E55.0)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Vitamin D-resistant osteomalacia
- Vitamin D-resistant rickets
Excludes1 inherited from the categories above E83.31
A category’s note binds every code beneath it.
Written on E83.3: Disorders of phosphorus metabolism and phosphatases
Excludes2 inherited from the categories above E83.31
Not part of this code, but both may be coded when both are present.
Other codes that can never be billed with E83.31
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
E83.31 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
E83.31 is named in 10 Medicare coverage policies: 10 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A56798Billing and Coding: Vitamin D Assay Testing
- A56841Billing and Coding: Vitamin D; 25 hydroxy, includes fraction(s), if performed
- A57122Billing and Coding: Parathormone (Parathyroid Hormone)
Alphabetic index entries that lead here
- Hypophosphatemia, hypophosphatasia›familial
- Osteomalacia›vitamin-D-resistant in adults
- Rickets›vitamin-D-resistant
- Osteomalacia›vitamin-D-resistant in adults›carpus
- Osteomalacia›vitamin-D-resistant in adults›clavicle
- Osteomalacia›vitamin-D-resistant in adults›femur
- Osteomalacia›vitamin-D-resistant in adults›fibula
- Osteomalacia›vitamin-D-resistant in adults›finger
- Osteomalacia›vitamin-D-resistant in adults›humerus
- Osteomalacia›vitamin-D-resistant in adults›ilium
- Osteomalacia›vitamin-D-resistant in adults›ischium
- Osteomalacia›vitamin-D-resistant in adults›metacarpus
Code history
Unchanged in every release from FY2024 to FY2027.