N25.89 is the authoritative medical code for Other disorders resulting from impaired renal tubular function. This classification is used in medical billing and clinical recording to specify the clinical criteria for other disorders resulting from impaired renal tubular function (ICD-10-CM N25.89), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Other disorders resulting from impaired renal tubular function is a billable ICD-10-CM diagnosis code N25.89. Inclusion terms: Hypokalemic nephropathy; Lightwood-Albright syndrome; Renal tubular acidosis NOS. Excludes2 (not included here): disorders of kidney and ureter with urolithiasis N20-N23.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for N25.89 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Hypokalemic nephropathy
- Lightwood-Albright syndrome
- Renal tubular acidosis NOS
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- disorders of kidney and ureter with urolithiasis N20-N23
Frequently Asked Questions (FAQ) & Clinical Guidance
Can N25.89 be reported alongside related conditions?
Per Excludes2 instructions, N25.89 and the following may both be reported when both are present: disorders of kidney and ureter with urolithiasis (N20-N23).
What conditions are included under N25.89?
Other disorders resulting from impaired renal tubular function includes: Hypokalemic nephropathy; Lightwood-Albright syndrome; Renal tubular acidosis NOS.
Codes in This Family (6)
Official ICD-10-CM classifications in the same code family as N25.89, with their registry titles.
- N25 — Disorders resulting from impaired renal tubular function
- N25.0 — Renal osteodystrophy
- N25.1 — Nephrogenic diabetes insipidus
- N25.8 — Other disorders resulting from impaired renal tubular function
- N25.81 — Secondary hyperparathyroidism of renal origin
- N25.9 — Disorder resulting from impaired renal tubular function, unspecified
Indexed Clinical Terms (19)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Acidosis (lactic), kidney, tubular
- Acidosis (lactic), renal (hyperchloremic) (tubular)
- Depletion, potassium, nephropathy
- Disease, diseased, Lightwood's (renal tubular acidosis)
- Disorder (of), impaired renal tubular function, specified NEC
- Disorder (of), kidney, tubular function, specified NEC
- Disorder (of), tubulo-renal function, impaired, specified NEC
- Impaired, impairment (function), kidney, disorder resulting from, specified NEC
- Impaired, impairment (function), renal (acute) (chronic), disorder resulting from, specified NEC
- Lightwood-Albright syndrome
- Lightwood's disease or syndrome (renal tubular acidosis)
- Nephropathy, hypercalcemic
- Nephropathy, hypokalemic (vacuolar)
- Nephropathy, potassium depletion
- Nephropathy, protein-losing
- Nephropathy, water-losing
- Nephrosis, nephrotic (Epstein's) (syndrome) (congenital), osmotic (sucrose)
- Syndrome, Lightwood's
- Water-losing nephritis
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: