2026 ICD-10-CM Diagnosis Code N28.89Other specified disorders of kidney and ureter
ICD-10-CM Codes›N00–N99›N25-N29›N28
- Billable — Valid for Submission
- Chronic Condition
N28.89 is a billable ICD-10-CM diagnosis code for other specified disorders of kidney and ureter. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) 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.
- Abdominal wall fistula
- Abnormal ureteral peristalsis
- Absence of ureteral peristalsis
- Acquired caliectasis
- Acquired calyceal diverticulum
- Acquired deviation of ureter
- Acquired hydronephrosis
- Acquired megaureter
- Acquired obstruction of urinary tract
- Acquired obstructive defect of renal pelvis
- Acquired ureterocele
- Acute kidney injury due to circulatory failure
- Acute urate nephropathy
- Adhesions of kidney
- Adhesions of ureter
- Age related reduction of renal function
- Amyloid of ureter
- Anti-diuresis
- Calyceal fistula
- Cardiorenal syndrome
- Compression of parenchyma of kidney
- Decreased ureteral peristalsis
- Depletion of electrolyte
- Deviation of ureter
- Dilatation of calyx
- Discoloration of kidney
- Diverticulum of renal calyx
- Dysplasia of blood vessel of kidney
- Eosinophilic ureteritis
- Escape of urine from kidney
- Escape of urine from ureter
- Extravasation of urine
- Extravasation of urine from kidney
- Extravasation of urine from ureter
- False passage of ureter
- Fibrocystic renal degeneration
- Finding of appearance of ureter
- Fistula from renal pelvis
- Frasier syndrome
- Hematoma of kidney
- Hemorrhage from ureter
- Hemorrhage of kidney
- Hemorrhage of ureteral orifice
- Hemorrhage of urinary bladder
- Impairment of urinary concentration
- Increased ureteral peristalsis
- Intrarenal hematoma
- Ischemic necrosis of ureter
- Isosthenuria
- Kidney crystallization
- Kidney filling defect
- Localized non-hereditary amyloidosis
- Malakoplakia
- Malakoplakia of kidney
- Nail patella-like renal disease
- Nephrocutaneous fistula
- Nephrovisceral fistula
- Pararenal urinoma
- Paraureteric urinoma
- Perforation of ureter
- Periureteritis
- Postoperative fistula
- Postoperative fistula of ureter
- Prerenal renal failure
- Pyelocutaneous fistula
- Pyoureter
- Rectourinary fistula
- Renal acidemia
- Renal artery hemorrhage
- Renal calyceal contraction
- Renal function tests within reference range
- Renal mass
- Renal medullary washout
- Renal pelvic contraction
- Renal scarring
- Renal scarring due to vesicoureteral reflux
- Residual ureterocele
- Retroperitoneal hemorrhage
- Salt-losing nephropathy
- Salt-wasting syndrome of infancy
- Stenosis of calyceal neck
- TEMPI syndrome
- Urate nephropathy
- Ureter filling defect
- Ureteric fistula
- Ureteric fistula to colon
- Ureteric fistula to rectum
- Ureteric fistula to skin
- Ureteric fistula to small intestine
- Ureteric fistula to urethra
- Ureteric neuromuscular incoordination
- Ureteric polyp
- Ureteritis
- Ureteritis glandularis
- Ureterocele
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) - L02.91
- periureteral - N28.89
- Adhesions, adhesive (postinfective) - K66.0
- perirenal - N28.89
- periureteral - N28.89
- Calicectasis - N28.89
- Caliectasis - N28.89
- Cyst (colloid) (mucous) (simple) (retention)
- ureter - N28.89
- ureterovesical orifice - N28.89
- Decapsulation, kidney - N28.89
- kidney (s) (calyx) (pelvis) (congenital) - Q63.9
- acquired - N28.89
- ureter (opening) (congenital) - Q62.8
- acquired - N28.89
- calyx - N28.89
- kidney (calyx) (collecting structures) (cystic) (parenchyma) (pelvis) (idiopathic) - N28.89
- kidney - N28.89
- Diverticulum, diverticula (multiple) - K57.90
- calyx, calyceal (kidney) - N28.89
- kidney (pelvis) (calyces) - N28.89
- ureter (acquired) - N28.89
- ureterovesical orifice - N28.89
- Eversion
- ureter (meatus) - N28.89
- abdomen (wall) - K63.2
- ureter - N28.89
- intestinoureteral - N28.89
- kidney - N28.89
- perineum, perineal (with urethral involvement) NEC - N36.0
- ureter - N28.89
- rectoureteral - N28.89
- renal - N28.89
- ureter (persistent) - N28.89
- ureteroabdominal - N28.89
- ureterorectal - N28.89
- ureterosigmoido-abdominal - N28.89
- Hernia, hernial (acquired) (recurrent) - K46.9
- ureter - N28.89
- ureter - N28.89
- Hyposthenuria - N28.89
- Infection, infected, infective (opportunistic) - B99.9
- periureteral - N28.89
- kidney - N28.89
- kidney (pelvis) - N28.89
- pelvis (kidney) - N28.89
- ureter (postinfectional) - N28.89
- Low
- lying
- kidney - N28.89
- reserve, kidney - N28.89
- pelvis (kidney) - N28.89
- ureter - N28.89
- kidney (pelvis) (squamous) - N28.89
- kidney (acquired) - N28.89
- kidney - N28.89
- Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) - N05.9
- salt losing or wasting NEC - N28.89
- Nephrorrhagia - N28.89
- Obstruction, obstructed, obstructive
- kidney (calices) - See Also: Hydronephrosis; - N28.89
- renal - See Also: Hydronephrosis; - N28.89
- Perforation, perforated (nontraumatic) (of)
- ureter - N28.89
- Periureteritis - N28.89
- ureter - N28.89
- ureter - N28.89
- ureterovesical orifice - N28.89
- Pyoureter - N28.89
- Ren
- mobile, mobilis - N28.89
- kidney - N28.89
- nontraumatic - N28.89
- nontraumatic - N28.89
- ureter - N28.89
- Syndrome - See Also: Disease;
- salt-losing - N28.89
- Thorn's syndrome - N28.89
- Ureteritis - N28.89
- nonspecific - N28.89
- Ureterocele - N28.89
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
- periureteral
- Adhesions, adhesive(postinfective)
- perirenal
- Adhesions, adhesive(postinfective)
- periureteral
- Calcification
- kidney
- Calcification
- ureter
- Calicectasis
- Caliectasis
- Congestion, congestive
- kidney
- Congestion, congestive
- renal
- Cyst(colloid) (mucous) (simple) (retention)
- ureter
- Cyst(colloid) (mucous) (simple) (retention)
- ureterovesical orifice
- Decapsulation, kidney
- Deformity
- kidney (s) (calyx) (pelvis) (congenital)
- acquired
- Deformity
- ureter (opening) (congenital)
- acquired
- Degeneration, degenerative
- kidney
- Degeneration, degenerative
- kidney
- fatty
- Dilatation
- calyx
- Dilatation
- kidney (calyx) (collecting structures) (cystic) (parenchyma) (pelvis) (idiopathic)
- Distension, distention
- kidney
- Diverticulum, diverticula(multiple)
- calyx, calyceal (kidney)
- Diverticulum, diverticula(multiple)
- kidney (pelvis) (calyces)
- Diverticulum, diverticula(multiple)
- ureter (acquired)
- Diverticulum, diverticula(multiple)
- ureterovesical orifice
- Eversion
- ureter (meatus)
- Fistula(cutaneous)
- abdomen (wall)
- ureter
- Fistula(cutaneous)
- intestinoureteral
- Fistula(cutaneous)
- kidney
- Fistula(cutaneous)
- perineum, perineal (with urethral involvement) NEC
- ureter
- Fistula(cutaneous)
- rectoureteral
- Fistula(cutaneous)
- renal
- Fistula(cutaneous)
- ureter (persistent)
- Fistula(cutaneous)
- ureteroabdominal
- Fistula(cutaneous)
- ureterorectal
- Fistula(cutaneous)
- ureterosigmoido-abdominal
- Floating
- kidney
- Hemorrhage, hemorrhagic(concealed)
- kidney
- Hemorrhage, hemorrhagic(concealed)
- renal
- Hernia, hernial(acquired) (recurrent)
- ureter
- Hyperemia(acute) (passive)
- kidney
- Hyperemia(acute) (passive)
- renal
- Hypertrophy, hypertrophic
- ureter
- Hyposthenuria
- Infection, infected, infective(opportunistic)
- periureteral
- Infiltrate, infiltration
- kidney
- Leukoplakia
- kidney (pelvis)
- Leukoplakia
- pelvis (kidney)
- Leukoplakia
- ureter (postinfectional)
- Low
- lying
- kidney
- Low
- reserve, kidney
- Malacoplakia
- pelvis (kidney)
- Malacoplakia
- ureter
- Mass
- kidney
- Metaplasia
- kidney (pelvis) (squamous)
- Misplaced, misplacement
- kidney (acquired)
- Mobile, mobility
- kidney
- Movable
- kidney
- Nephritis, nephritic(albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic)
- salt losing or wasting NEC
- Nephrorrhagia
- Obstruction, obstructed, obstructive
- kidney (calices)
- Obstruction, obstructed, obstructive
- renal
- Palpable
- kidney
- Perforation, perforated(nontraumatic) (of)
- ureter
- Periureteritis
- Polyp, polypus
- ureter
- Prolapse, prolapsed
- ureter
- Prolapse, prolapsed
- ureterovesical orifice
- Pyoureter
- Ren
- mobile, mobilis
- Reserve, decreased or low
- kidney
- Rupture, ruptured
- kidney (traumatic)
- nontraumatic
- Rupture, ruptured
- ureter (traumatic)
- nontraumatic
- Sacculation
- ureter
- Steatosis
- kidney
- Syndrome
- salt-losing
- Thorn's syndrome
- Ureteritis
- Ureteritis
- nonspecific
- Ureterocele
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Ureterocele
a cystic dilatation of the end of a ureter as it enters into the urinary bladder. it is characterized by the ballooning of the ureteral orifice into the lumen of the bladder and may obstruct urine flow.Frasier Syndrome
a syndrome characterized by chronic kidney failure and gonadal dysgenesis in phenotypic females with karyotype of 46,xy or female individual with a normal 46,xx karyotype. it is caused by donor splice-site mutations of wilms tumor suppressor gene (genes, wilms tumor) on chromosome 11.Ureteritis Glandularis|Ureteritis glandularis
a benign inflammatory lesion of the ureter characterized by glandular metaplasia of the urethral lining. it is a further proliferative progression of cystitis glandularis.Ureteritis
an acute or chronic inflammatory process affecting the ureter.Ureteritis Cystica
a non-neoplastic lesion of the ureter characterized by the presence of multiple submucosal small cysts in the ureteral wall. it is caused by inflammation due to urinary tract stones or infection.Cecoureterocele
a ureterocele in which the orifice is located in the bladder, with the ureterocele pouch extending submucosally into the urethra.Ectopic Ureterocele
a ureterocele in which some portion of the ureterocele is situated permanently at the bladder neck or in the urethra. the orifice may be situated in the bladder, at the bladder neck, or in the urethra. (adapted from glassberg ki, braren v, duckett jw, jacobs ec, king lr, lebowitz rl et al. suggested terminology for duplex systems, ectopic ureters and ureteroceles. j urol 1984; 132(6):1153-1154.)Intravesical Ureterocele|Orthotopic Ureterocele
a ureterocele that is located entirely within the bladder, and which may be associated with a single system, with the upper pole ureter of a completely duplicated system, or rarely associated with a lower pole ureter. (adapted from glassberg ki, braren v, duckett jw, jacobs ec, king lr, lebowitz rl et al. suggested terminology for duplex systems, ectopic ureters and ureteroceles. j urol 1984; 132(6):1153-1154.)Obstructive Ureterocele|Stenotic
a ureterocele with a small, obstructive orifice.Sphincteric Ureterocele|Transsphincteric
a ureterocele in which the orifice is distal to the external urinary sphincter.Ureterocele
a cystic and dysplastic dilation of the distal ureter within the bladder that may extend into the bladder neck and urethra.Ureteric Fistula
an abnormal communication between the ureter and another organ or anatomic site.Cardiorenal Syndrome
a disorder of the heart and kidneys in which dysfunction of one of the organs induces dysfunction of the other organ.Frasier Syndrome
a condition, which typically presents during adolescence, that is caused by wt-1 mutation, and is characterized by a developmental sex disorder, fsgs, and may be associated with gonadoblastoma.Malakoplakia
an inflammatory reaction characterized by the presence of papules or nodules usually in the genitourinary tract. it is usually a reaction to an infection. morphologically, it consists of foamy histiocytes and characteristic basophilic inclusion bodies called michaelis-gutmann bodies.TEMPI Syndrome
a rare syndrome characterized by telangiectasias, elevated erythropoietin level and erythrocytosis, monoclonal gammopathy, perinephric fluid collections, and intrapulmonary shunting. it is best classified as a type of plasma cell dyscrasia with paraneoplastic manifestations.
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
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Convert N28.89 to ICD-9-CMHistory
Code HistoryHistory
Questions About N28.89Overview
Is N28.89 (Other specified disorders of kidney and ureter) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other specified disorders of kidney and ureter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does N28.89 group to?
When other specified disorders of kidney and ureter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 698, 699, 700, with relative weights from 0.6899 to 1.6544 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of N28.89?
Under the General Equivalence Mappings, other specified disorders of kidney and ureter converts to ICD-9-CM 593.82 (ureteral fistula) and 593.89 (renal & ureteral dis NEC). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
