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E83.81

E83.81Hungry bone syndrome

Billable / specific codeICD-10-CM

E83.81 is a billable, specific ICD-10-CM code for hungry bone syndrome. It is valid for submission on a claim.

Other codes that can never be billed with E83.81

These codes carry an Excludes1 note pointing at E83.81. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E83.81 alone.

  • E21Hyperparathyroidism and other disorders of parathyroid gland
  • E83.5Disorders of calcium metabolism

Risk adjustment

E83.81 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

E83.81 is named in 2 Medicare coverage policies 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A57189Billing and Coding: Serum Magnesium
  • A57326Billing and Coding: Electrocardiograms

How E83.81 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 E83.81.

  • Hungry bone syndrome
  • Syndromehungry bone

Related codes at this level

Codes that share E83.8. If E83.81 is not quite right, the correct code is usually one of these.

Questions about E83.81

Is E83.81 a billable ICD-10-CM code?
Yes. E83.81 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does E83.81 sit in the tabular list?
Endocrine, nutritional and metabolic diseases (E00-E89), in the block Metabolic disorders (E70-E88).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.