ICD-10-CM 2027
ICD-10 code for Phosphaturia
From the official ICD-10-CM alphabetic index entry “Phosphaturia”. Page updated September 29, 2026.
About coding Phosphaturia
The ICD-10-CM code for Phosphaturia is E83.39 (Other disorders of phosphorus metabolism).
Within E83.3, choose E83.39 (Other disorders of phosphorus metabolism) only when documentation doesn't support a more specific option: disorder of phosphorus metabolism, unspecified (E83.30), familial hypophosphatemia (E83.31) and hereditary vitamin D-dependent rickets (type 1) (type 2) (E83.32).
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 642 (Inborn and Other Disorders of Metabolism, relative weight 1.3219), 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 Phosphaturia ICD-10 codes
What is the ICD-10 code for Phosphaturia?
- E83.39 — Other disorders of phosphorus metabolism.
Is E83.39 billable?
- Yes. E83.39 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E83.39 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E83.39 as a principal diagnosis.
Is E83.39 a CC or MCC?
- No. E83.39 is neither a CC nor an MCC under MS-DRG v44.0.