N25.0Renal osteodystrophy

N25.0 is the ICD-10-CM diagnosis code for renal osteodystrophy. It belongs to category N25 (disorders resulting from impaired renal tubular function), block N25-N29 (other disorders of kidney and ureter) and chapter 14 (diseases of the genitourinary system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within N25 (disorders resulting from impaired renal tubular function), N25.0 is specifically for renal osteodystrophy. Related codes cover Nephrogenic diabetes insipidus (N25.1), other disorders resulting from impaired renal tubular function (N25.8) and disorder resulting from impaired renal tubular function, unspecified (N25.9).

The conditions in its Excludes2 note aren't part of N25.0, but may be coded alongside it if the patient has both: metabolic disorders classifiable to E70-E88.

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 698 (Other Kidney and Urinary Tract Diagnoses with MCC, relative weight 1.6398), DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC, relative weight 1.0003) and DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC, relative weight 0.6741), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 588.0 (renal osteodystrophy).