2027 ICD-10-CM Diagnosis Code N39.9Disorder of urinary system, unspecified
ICD-10-CM Codes›N00–N99›N30-N39›N39
- Billable — Valid for Submission
- Not Chronic
N39.9 is a billable ICD-10-CM diagnosis code for disorder of urinary system, unspecified. 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. Coders also document this condition as disorder of lower urinary tract. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Genitourinary signs and symptoms.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Disorder of lower urinary tract
- Disorder of urinary system
- Disorder of urinary tract
- Fetal disorder due to maternal disorder of urinary tract
- Hereditary disorder of the urinary system
- Urinary complication
- Urinary disorder treatment changed
- Urinary disorder treatment started
- Urinary sequelae of disorders
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N39.9: its own notes plus those printed at N39, block N30-N39, and Chapter 14. A note printed at a category, block or chapter applies to every code under it.
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.
Disease, diseased See Also: Syndrome;
urinary (tract) N39.9
Disorder (of) See Also: Disease;
urinary system N39.9
Uropathy N39.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Urinary System Disorder
a non-neoplastic or neoplastic disorder affecting the urinary system.
Patient EducationClinical
Bladder Diseases
The bladder is a hollow organ in your lower abdomen that stores urine. Many conditions can affect your bladder. Some common ones are:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert N39.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N39.9Overview
What is the ICD-10 code for disorder of urinary system, unspecified?
The ICD-10-CM code for disorder of urinary system, unspecified is N39.9 (sometimes written as N399). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N39.9 (Other disorders of urinary system) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report disorder of urinary system, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N39.9 group to?
When disorder of urinary system, unspecified 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 N39.9?
Under the General Equivalence Mappings, disorder of urinary system, unspecified converts to ICD-9-CM 599.9 (urinary tract dis NOS). The mapping is approximate, so confirm the match fits the documentation.
