N25.89
Other disorders resulting from impaired renal tubular function
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 9 never code together
N00-N99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 3
N25.89code
Inclusion terms
- Hypokalemic nephropathy
- Lightwood-Albright syndrome
- Renal tubular acidosis NOS
Index entries leading here 11
- Acidosis (lactic) E87.20
- Depletion
- Disease, diseased — see also Syndrome
- Lightwood's (renal tubular acidosis) N25.89
- Disorder (of) — see also Disease
- Impaired, impairment (function)
- Nephropathy N28.9
- Lightwood-Albright syndrome N25.89
- Syndrome — see also Disease
- Lightwood's N25.89
- Lightwood's disease or syndrome (renal tubular acidosis) N25.89
- Nephrosis, nephrotic (Epstein's) (syndrome) (congenital) N04.9
- osmotic (sucrose) N25.89
- Water-losing nephritis N25.89
Alongside this code 1 same parent — N25.8
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.