E83.59 — Other disorders of calcium metabolism
E83.59 is a billable, specific ICD-10-CM code for other disorders of calcium metabolism. It is valid for submission on a claim.
Excludes1 inherited from the categories above E83.59
These are not written on E83.59, but they bind it: a note on a category applies to every code beneath it. Billing E83.59 with anything listed here is a denial.
Written on E83.5 — Disorders of calcium metabolism
Other codes that can never be billed with E83.59
These codes carry an Excludes1 note pointing at E83.59. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E83.59 alone.
Risk adjustment
E83.59 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
E83.59 is named in 6 Medicare coverage policies — 6 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A56841Billing and Coding: Vitamin D; 25 hydroxy, includes fraction(s), if performed
- A57122Billing and Coding: Parathormone (Parathyroid Hormone)
- A57189Billing and Coding: Serum Magnesium
How E83.59 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to E83.59.
- Calcinosis(interstitial) (tumoral) (universalis)
- Calciphylaxis
- Nephrocalcinosis
- Calcification›general
- Calcification›metastatic
- Metastasis, metastatic›calcification
- Disorder›metabolism NOS›calcium›other specified
Code history
E83.59 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share E83.5. If E83.59 is not quite right, the correct code is usually one of these.
Questions about E83.59
- Is E83.59 a billable ICD-10-CM code?
- Yes. E83.59 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E83.59 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Metabolic disorders (E70-E88).
- What cannot be coded together with E83.59?
- E83.59 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above E83.59 (E83.5, E83) and apply to it just the same.