2021

  1. ICD-10-CM Codes
    2. ›
  2. N00-N99 Diseases of the genitourinary system
    3. ›
  3. N40-N53 Diseases of male genital organs
    4. ›
  4. N51- Disorders of male genital organs in diseases classified elsewhere
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code N51

2021 ICD-10-CM Diagnosis Code N51

Disorders of male genital organs in diseases classified elsewhere

    2016 2017 2018 2019 2020 2021 Billable/Specific Code Male Dx Manifestation Code
  • N51 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Disorders of male genital organs in diseases classd elswhr
  • The 2021 edition of ICD-10-CM N51 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of N51 - other international versions of ICD-10 N51 may differ.
ICD-10-CM Coding Rules
  • N51 is applicable to male patients.
  • N51 describes the manifestation of an underlying disease, not the disease itself.
Code First
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, 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. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • underlying disease, such as:
  • filariasis (
    ICD-10-CM Diagnosis Code B74.0

    Filariasis due to Wuchereria bancrofti

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Bancroftian elephantiasis
    • Bancroftian filariasis
    B74.0-
    ICD-10-CM Diagnosis Code B74.9

    Filariasis, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    B74.9
    )
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as N51. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • amebic balanitis (
    ICD-10-CM Diagnosis Code A06.8

    Amebic infection of other sites

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    A06.8
    )
  • candidal balanitis (
    ICD-10-CM Diagnosis Code B37.42

    Candidal balanitis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Male Dx
    B37.42
    )
  • gonococcal balanitis (
    ICD-10-CM Diagnosis Code A54.23

    Gonococcal infection of other male genital organs

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Male Dx
    Applicable To
    • Gonococcal epididymitis
    • Gonococcal orchitis
    A54.23
    )
  • gonococcal prostatitis (
    ICD-10-CM Diagnosis Code A54.22

    Gonococcal prostatitis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Male Dx
    A54.22
    )
  • herpesviral [herpes simplex] balanitis (
    ICD-10-CM Diagnosis Code A60.01

    Herpesviral infection of penis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Male Dx
    A60.01
    )
  • trichomonal prostatitis (
    ICD-10-CM Diagnosis Code A59.02

    Trichomonal prostatitis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Male Dx
    A59.02
    )
  • tuberculous prostatitis (
    ICD-10-CM Diagnosis Code A18.14

    Tuberculosis of prostate

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years) Male Dx
    A18.14
    )
The following code(s) above N51 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to N51:
  • N00-N99
    2021 ICD-10-CM Range N00-N99

    Diseases of the genitourinary system

    Type 2 Excludes
    • 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)
    Diseases of the genitourinary system
ICD-10-CM N51 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 729 Other male reproductive system diagnoses with cc/mcc
  • 730 Other male reproductive system diagnoses without cc/mcc

Convert N51 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To N51
N50.1 Vascular disorders of male genital organs
N50.3 Cyst of epididymis
N50.8 Other specified disorders of male genital organs
N50.81 Testicular pain
N50.811 Right testicular pain
N50.812 Left testicular pain
N50.819 …… unspecified
N50.82 Scrotal pain
N50.89 Other specified disorders of the male genital organs
N50.9 Disorder of male genital organs, unspecified
N51 Disorders of male genital organs in diseases classified elsewhere
N52 Male erectile dysfunction
N52.0 Vasculogenic erectile dysfunction
N52.01 Erectile dysfunction due to arterial insufficiency
N52.02 Corporo-venous occlusive erectile dysfunction
N52.03 Combined arterial insufficiency and corporo-venous occlusive erectile dysfunction
N52.1 Erectile dysfunction due to diseases classified elsewhere
N52.2 Drug-induced erectile dysfunction
N52.3 Postprocedural erectile dysfunction
N52.31 Erectile dysfunction following radical prostatectomy
N52.32 Erectile dysfunction following radical cystectomy

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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