N30-N39
Medium Complexity
Other diseases of the urinary system
Primary Specialty: Urology
Last Updated: 2025-09-10
ICD-10 Codes (90)
87 billable0 category headers
N31N31.0Billable
N31.1Billable
N31.2Billable
N31.8Billable
N31.9Billable
N32N32.0Billable
N32.1Billable
N32.2Billable
N32.3Billable
N32.8Billable
N32.81Billable
N32.89Billable
N32.9Billable
N33Billable
N34N34.0Billable
N34.1Billable
N34.2Billable
N34.3Billable
N35Billable
N35.0Billable
N35.01Billable
N35.010Billable
N35.011Billable
N35.012Billable
N35.013Billable
N35.014Billable
N35.016Billable
N35.02Billable
N35.021Billable
N35.028Billable
N35.1Billable
N35.11Billable
N35.111Billable
N35.112Billable
N35.113Billable
N35.114Billable
N35.116Billable
N35.119Billable
N35.12Billable
N35.8Billable
N35.81Billable
N35.811Billable
N35.812Billable
N35.813Billable
N35.814Billable
N35.816Billable
N35.819Billable
N35.82Billable
N35.9Billable
N35.91Billable
N35.911Billable
N35.912Billable
N35.913Billable
N35.914Billable
N35.916Billable
N35.919Billable
N35.92Billable
N36Billable
N36.0Billable
N36.1Billable
N36.2Billable
N36.4Billable
N36.41Billable
N36.42Billable
N36.43Billable
N36.44Billable
N36.5Billable
N36.8Billable
N36.9Billable
N37Billable
N39Billable
N39.0Billable
N39.3Billable
N39.4Billable
N39.41Billable
N39.42Billable
N39.43Billable
N39.44Billable
N39.45Billable
N39.46Billable
N39.49Billable
N39.490Billable
N39.491Billable
N39.492Billable
N39.498Billable
N39.8Billable
N39.9Billable
Updates & Changes
FY 2026 Updates
Current Year
New Codes (2)
N18.30
Chronic kidney disease, stage 3a (GFR 45-59)
N18.31
Chronic kidney disease, stage 3b (GFR 30-44)
Revised Codes (1)
N18.6
End stage renal disease - updated to align with KDIGO guidelines
Deleted Codes(1)
N18.3
Chronic kidney disease, stage 3 (moderate) - replaced by more specific 3a/3b staging
Historical Changes
- •FY 2025: Routine maintenance updates with minor terminology clarifications
- •FY 2024: Enhanced specificity requirements for certain code ranges
- •FY 2023: Updated documentation guidelines for improved clarity
Upcoming Changes
- •Proposed updates pending review by Coordination and Maintenance Committee
- •Under consideration: Enhanced digital health integration codes
Implementation Guidance
- •Review all FY 2026 updates for N30-N39 codes before implementation
- •Always verify the most current codes in the ICD-10-CM manual
- •Ensure clinical documentation supports the selected diagnosis codes
- +3 more guidance items...
Range Overview
high priority
The ICD-10 code range N30-N39 pertains to 'Other diseases of the urinary system.' This range encompasses a variety of conditions, including but not limited to cystitis, urethritis, urinary incontinence, and other disorders of the urinary system. These codes are used to document diagnoses related to urinary tract infections, bladder abnormalities, and other urinary system diseases. The range is comprehensive, covering both acute and chronic conditions, and includes codes for both primary and secondary diagnoses.
Key Usage Points:
- •Always code for the highest level of specificity based on the documentation provided.
- •Use additional codes to identify any associated conditions or complications.
- •For recurrent conditions, use the appropriate code to indicate the frequency of episodes.
- •Consider the patient's age and gender as some codes are specific to these factors.
- •Always verify the code in the Tabular List before finalizing.
Coding Guidelines
When to Use:
- ✓When a patient is diagnosed with a urinary tract infection.
- ✓When a patient presents with symptoms of urinary incontinence.
- ✓When a patient has a chronic urinary system disease like interstitial cystitis.
- ✓When a patient has a complication related to a urinary system disease.
- ✓When a patient has a disorder of the urinary system not classified elsewhere.
When NOT to Use:
- ✗When the condition is related to the reproductive system, not the urinary system.
- ✗When the patient's symptoms are not specifically related to the urinary system.
- ✗When the condition is a congenital anomaly of the urinary system.
- ✗When the condition is a neoplasm of the urinary system.
- ✗When the condition is a kidney disease.
Code Exclusions
Always cross-verify exclusions with the Tabular List to ensure the most accurate coding.
Documentation Requirements
Proper documentation for codes within the N30-N39 range should include a clear and specific diagnosis, details of the patient's symptoms, the duration and frequency of symptoms, any relevant patient history, and any associated conditions or complications. The documentation should also include the results of any relevant diagnostic tests.
Clinical Information:
- •Specific diagnosis of the urinary system disease
- •Details of the patient's symptoms
- •Duration and frequency of symptoms
- •Relevant patient history
- •Associated conditions or complications
Supporting Evidence:
- •Results of diagnostic tests
- •Clinical notes from physical examination
- •Imaging reports, if applicable
- •Lab test results, if applicable
Good Documentation Example:
Patient diagnosed with recurrent cystitis. She has been experiencing frequent urination and lower abdominal pain for the past week. Urinalysis confirmed the presence of bacteria in the urine.
Poor Documentation Example:
Patient has UTI.
Common Documentation Errors:
- âš Not providing enough detail about the patient's symptoms
- âš Failing to document the duration and frequency of symptoms
- âš Not including results of diagnostic tests
- âš Not specifying the type of urinary system disease
Range Statistics
9
Total Codes
87
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:14
Coding Complexity
Medium
Complexity Rating
The complexity of coding within the N30-N39 range is considered medium due to the need for high specificity in coding. The range covers a broad spectrum of conditions, requiring coders to have a thorough understanding of urinary system diseases. Additionally, coders must consider the patient's age and gender, identify any associated conditions or complications, and differentiate between acute and chronic conditions.
Key Factors:
- â–¸The need for high specificity in coding
- â–¸The broad range of conditions covered
- â–¸The need to consider patient's age and gender
- â–¸The need to identify associated conditions or complications
- â–¸The need to differentiate between acute and chronic conditions
Specialty Focus
Codes in the N30-N39 range are most commonly used by urologists, but can also be relevant for primary care physicians, geriatricians, and gynecologists. These codes cover a wide range of urinary system diseases, from infections to functional disorders.
Primary Specialties:
Urology
60%
Primary Care
30%
Geriatrics
10%
Clinical Scenarios:
- • A patient presenting with symptoms of a urinary tract infection
- • A patient with a chronic bladder disorder like interstitial cystitis
- • An elderly patient with urinary incontinence
- • A patient with a complication related to a urinary system disease
- • A patient with a urinary system disease not classified elsewhere
Resources & References
Several resources are available for coders working with the N30-N39 range. These include the official ICD-10-CM guidelines, clinical reference books, and educational materials from professional coding organizations.
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- WHO's International Classification of Diseases, 10th Revision
- National Center for Health Statistics' ICD-10-CM Index and Tabular List
Clinical References:
- Urology: A Comprehensive Text
- Clinical Guide to Urinary System Diseases
Educational Materials:
- American Academy of Professional Coders (AAPC) ICD-10 Training
- American Health Information Management Association (AHIMA) ICD-10 Resources
Frequently Asked Questions
How do I code for a patient with a urinary tract infection and urinary incontinence?
You would use two separate codes: one for the urinary tract infection (from the N30-N34 subcategory) and another for the urinary incontinence (from the N39.3-N39.4 subcategory). Always code for the UTI first, as it is the primary reason for the encounter.