ICD-10 E83.822
Billable / Specific HCC v28: 23ENPP1 deficiency causing autosomal recessive hypophosphatemic rickets type 2
About ICD-10-CM E83.822
ICD-10-CM code E83.822 represents ENPP1 deficiency causing autosomal recessive hypophosphatemic rickets type 2. This is a billable/specific code in the Endocrine, Nutritional, and Metabolic chapter (block E83). The 2026 edition of ICD-10-CM E83.822 became effective on October 1, 2025.
Coding Tips for E83.822
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
E83.822 is a CMS-HCC v28 risk-adjustment code (category 23). To count for the patient Risk Adjustment Factor (RAF), document the diagnosis with MEAT language each calendar year: Monitored, Evaluated, Assessed, Treated. A diagnosis on the problem list alone does not satisfy CMS RADV audit standards. Include the diagnosis in the assessment with current status and current treatment plan.
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Medicare LCD Coverage for E83.822
Local Coverage Determinations (LCDs) from CMS MACs that list E83.822 as a covered diagnosis.
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Commercial Payer Coverage
Coverage policies from major commercial payers referencing E83.822.
1 Medicare
CPT Codes Commonly Billed with E83.822
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 83970 CMS LCD: Billing and Coding: Parathormone (Parathyroid Hormone) CMS LCD
Codes Adjacent To E83.822
Other codes in section E70-E88 (Metabolic disorders).
ICD-10 E83.822, Billing FAQ
Is ICD-10 code E83.822 billable? +
Yes, E83.822 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Does E83.822 affect Medicare Advantage HCC risk adjustment? +
Yes. E83.822 maps to CMS-HCC v28 category 23. Capture this diagnosis annually for accurate Medicare Advantage risk score.
What CPT codes are commonly billed with E83.822? +
Procedures frequently paired with E83.822 include: 83970.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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