ICD-10-CM Tabular Index · Chapter 14 · FY 2027 N30–N39
Other diseases of the urinary system (N30-N39) ICD-10-CM
The N30–N39 section covers other diseases of the urinary system with 112 ICD-10-CM diagnosis codes, of which 85 are billable in fiscal year 2027. The section is organized into the 9 code ranges listed below.
✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
9
Code Ranges
112
Diagnosis Codes
85
Billable Codes
N30–N39
Code Range
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
urinary infection (complicating):
abortion or ectopic or molar pregnancy O00O07O08.8
pregnancy, childbirth and the puerperium O23O75.3O86.2
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the N30–N39 Code Range
Bladder and urethral disorders make up most of this group, alongside other urinary system disorders. Cystitis means bladder inflammation, which can have bacterial or nonbacterial causes. A urethral stricture is a narrowing of the urethra.
The bladder categories separate cystitis by form in N30 and neuromuscular bladder dysfunction by type in N31. N32 includes bladder-neck obstruction, fistulas and diverticula. N33 identifies bladder disorders in diseases classified elsewhere.
For the urethra, N34 groups urethritis, abscess and urethral syndrome. N35 separates strictures by cause, including trauma and infection. N36 includes fistulas, diverticula, and functional and muscular disorders. N37 identifies urethral disorders in diseases classified elsewhere. N39 includes urinary tract infection without a specified site and types of urinary incontinence.
Questions About This Page
How many codes are in the N30-N39 range?
The N30-N39 range contains 112 ICD-10-CM diagnosis codes in FY 2027. 85 of them are billable, and the rest are category headers that organize the section.
What conditions does N30-N39 cover?
The range covers other diseases of the urinary system. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
code to identify any associated urinary incontinence N39.3N39.4
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
underlying disease
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
