N25.89
N25.89: Other disorders resulting from impaired renal tubular function
Billable / specific codeICD-10-CM
N25.89 is a billable, specific ICD-10-CM code for other disorders resulting from impaired renal tubular function. It is valid for submission on a claim.
Check N25.89 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Hypokalemic nephropathy
- Lightwood-Albright syndrome
- Renal tubular acidosis NOS
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
N25.89 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A57122Billing and Coding: Parathormone (Parathyroid Hormone)
- A57189Billing and Coding: Serum Magnesium
- A59186Billing and Coding: Magnesium
Alphabetic index entries that lead here
- Lightwood-Albright syndrome
- Lightwood's disease or syndrome(renal tubular acidosis)
- Water-losing nephritis
- Acidosis›kidney, tubular
- Acidosis›renal(hyperchloremic) (tubular)
- Disease, diseased›Lightwood's(renal tubular acidosis)
- Nephropathy›hypercalcemic
- Nephropathy›hypokalemic(vacuolar)
- Nephropathy›potassium depletion
- Nephropathy›protein-losing
- Nephropathy›water-losing
- Nephrosis, nephrotic›osmotic(sucrose)
Code history
Unchanged in every release from FY2024 to FY2027.