2027 ICD-10-CM Diagnosis Code N29Other disorders of kidney and ureter in diseases classified elsewhere
ICD-10-CM Codes›N00–N99›N25-N29›N29
- Billable — Valid for Submission
- Not Chronic
N29 is a billable ICD-10-CM diagnosis code for other disorders of kidney and ureter in diseases classified elsewhere. 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. The code is a manifestation code that cannot be reported as the principal diagnosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified diseases of kidney and ureters.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for N29.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cortical nephrocalcinosis
- Disorder of kidney and/or ureter caused by Schistosoma haematobium
- Disorder of kidney due to lambda light chain disease
- Enamel-renal syndrome
- Familial hypomagnesemia hypercalciuria nephrocalcinosis with severe ocular involvement
- Familial hypomagnesemia-hypercalciuria
- Familial primary hypomagnesemia with hypercalciuria and nephrocalcinosis
- Familial primary hypomagnesemia with hypercalciuria and nephrocalcinosis without severe ocular involvement
- Genitourinary tract schistosomiasis
- Macroscopic nephrocalcinosis
- Medullary nephrocalcinosis
- Metabolic renal disease
- Microscopic nephrocalcinosis
- Monoclonal gammopathy of renal significance
- Monoclonal immunoglobulin-associated kidney disease
- Myeloma kidney
- Neonatal nephrocalcinosis
- Neonatal renal disorder
- Nephrocalcinosis
- Renal disorder due to systemic lupus erythematosus
- Renal disorders in systemic disease
- Renal involvement in malignant disease
- Renal involvement in scleroderma
- Schistosoma haematobium infection
- Urethral stricture due to infection
- Urethral stricture due to schistosomiasis
- Urinary schistosomiasis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N29: 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.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
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)
Code First
The underlying condition named in the note is sequenced before this code.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name N29, its category, or a range that includes it.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
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 N29 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N29Overview
What is the ICD-10 code for other disorders of kidney and ureter in diseases classified elsewhere?
The ICD-10-CM code for other disorders of kidney and ureter in diseases classified elsewhere is N29. It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N29 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other disorders of kidney and ureter in diseases classified elsewhere on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N29 group to?
On inpatient claims, other disorders of kidney and ureter in diseases classified elsewhere maps to MS-DRG 699, 698, 700, with relative weights from 0.6740 to 1.6400 depending on complications. Higher weights mean higher Medicare reimbursement.
Can N29 be a principal diagnosis?
No. This is a manifestation code: other disorders of kidney and ureter in diseases classified elsewhere describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.
Can N29 be reported with E72.0?
Not as a rule. The Excludes1 note on N29 lists "cystinosis (E72.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
