2027 ICD-10-CM Diagnosis Code N25.89Other disorders resulting from impaired renal tubular function
ICD-10-CM Codes›N00–N99›N25-N29›N25
- Billable — Valid for Submission
- Chronic Condition
N25.89 is a billable ICD-10-CM diagnosis code for other disorders resulting from impaired renal tubular function. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 698 through 700. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified diseases of kidney and ureters.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acquired magnesium-losing nephropathy
- Acute metabolic acidosis
- Central nervous system calcification, deafness, tubular acidosis, anemia syndrome
- Distal renal tubular acidosis
- Distal renal tubular acidosis co-occurrent with sensorineural deafness
- Familial proximal renal tubular acidosis
- Familial renal hypouricemia
- Fanconi-like syndrome
- Gitelman syndrome
- High renal threshold for glucose
- Hypercalcemic nephropathy
- Hyperkalemic renal tubular acidosis
- Hypocalciuria
- Hypokalemia, excessive renal losses
- Hypokalemic alkalosis
- Hypokalemic nephropathy
- Isolated hypercystinuria
- Magnesium-losing nephropathy
- Neonatal acidosis
- Neonatal renal disorder
- Neonatal renal impairment
- Osteopetrosis with renal tubular acidosis
- Protein-losing nephropathy
- Proximal renal tubular acidosis
- Renal hypocalciuria
- Renal tubular acidosis
- Renal tubular acidosis with progressive nerve deafness
- Structural abnormality of renal tubular basement membrane
- Transient neonatal renal tubular acidosis
- Uremic acidosis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N25.89: its own notes plus those printed at block N25-N29 and Chapter 14. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Hypokalemic nephropathy
- Lightwood-Albright syndrome
- Renal tubular acidosis NOS
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
nephropathy N25.89
Disease, diseased See Also: Syndrome;
Disorder (of) See Also: Disease;
Lightwood-Albright syndrome N25.89
Nephropathy See Also: Nephritis; N28.9
hypercalcemic N25.89
hypokalemic (vacuolar) N25.89
potassium depletion N25.89
protein-losing N25.89
water-losing N25.89
Syndrome See Also: Disease;
Lightwood's N25.89
Water-losing nephritis N25.89
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Kidney Diseases
You have two kidneys, each about the size of your fist. They are near the middle of your back, just below the rib cage. Inside each kidney there are about a million tiny structures called nephrons. They filter your blood. They remove wastes and extra water, which become urine. The urine flows through tubes called ureters.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert N25.89 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N25.89Overview
What is the ICD-10 code for other disorders resulting from impaired renal tubular function?
The ICD-10-CM code for other disorders resulting from impaired renal tubular function is N25.89 (sometimes written as N2589). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N25.89 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other disorders resulting from impaired renal tubular function on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N25.89 group to?
When other disorders resulting from impaired renal tubular function is the principal diagnosis on an inpatient stay, it groups to MS-DRG 699, 698, 700, with relative weights from 0.6740 to 1.6400 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of N25.89?
Under the General Equivalence Mappings, other disorders resulting from impaired renal tubular function converts to ICD-9-CM 588.89 (impair ren funct dis NEC). The mapping is a direct match.
