ICD-10-CM 2027
ICD-10 code for Hungry bone syndrome
From the official ICD-10-CM alphabetic index entry “Hungry bone syndrome”. Page updated September 29, 2026.
About coding Hungry bone syndrome
The ICD-10-CM code for Hungry bone syndrome is E83.81 (Hungry bone syndrome).
Within E83.8 (other disorders of mineral metabolism), E83.81 is specifically for Hungry bone syndrome. Related codes cover disorders of pyrophosphate metabolism (E83.82) and other disorders of mineral metabolism (E83.89).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 640 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC, relative weight 1.3395) and DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC, relative weight 0.7865), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Hungry bone syndrome ICD-10 codes
What is the ICD-10 code for Hungry bone syndrome?
- E83.81 — Hungry bone syndrome.
Is E83.81 billable?
- Yes. E83.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E83.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E83.81 as a principal diagnosis.
Is E83.81 a CC or MCC?
- No. E83.81 is neither a CC nor an MCC under MS-DRG v44.0.