2022 ICD-10-CM Diagnosis Code N42.9

Disorder of prostate, unspecified

    2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code Adult Dx (15-124 years) Male Dx
  • N42.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2022 edition of ICD-10-CM N42.9 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of N42.9 - other international versions of ICD-10 N42.9 may differ.
ICD-10-CM Coding Rules
  • N42.9 is applicable to adult patients aged 15 - 124 years inclusive.
  • N42.9 is applicable to male patients.
The following code(s) above N42.9 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 N42.9:
  • N00-N99
    2022 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
Approximate Synonyms
  • Abnormal prostate on physical examination
  • Disease of prostate
  • Disorder of prostate
  • On examination - prostate abnormal
  • On rectal examination of prostate abnormality detected
Clinical Information
  • A non-neoplastic or neoplastic disorder affecting the prostate gland. Representative examples include prostatitis, benign prostatic hyperplasia, and cancer.
  • Deviation from or interruption of the normal structure or function of the prostate.
  • Pathological processes involving the prostate or its component tissues.
  • The prostate is a gland. It helps make semen, the fluid that contains sperm. The prostate surrounds the tube that carries urine away from the bladder and out of the body. A young man's prostate is about the size of a walnut. It slowly grows larger with age. If it gets too large, it can cause problems. This is very common after age 50. The older men get, the more likely they are to have prostate trouble. Some common problems are
    • prostatitis - an infection, usually caused by bacteria
    • benign prostatic hyperplasia, or bph - an enlarged prostate, which may cause dribbling after urination or a need to go often, especially at night
    • prostate cancer - a common cancer that responds best to treatment when detected early
ICD-10-CM N42.9 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 729 Other male reproductive system diagnoses with cc/mcc
  • 730 Other male reproductive system diagnoses without cc/mcc

Convert N42.9 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
  • 2022 (effective 10/1/2021): No change

Diagnosis Index entries containing back-references to N42.9:

ICD-10-CM Codes Adjacent To N42.9
N42.3 Dysplasia of prostate
N42.30 Unspecified dysplasia of prostate
N42.31 Prostatic intraepithelial neoplasia
N42.32 Atypical small acinar proliferation of prostate
N42.39 Other dysplasia of prostate
N42.8 Other specified disorders of prostate
N42.81 Prostatodynia syndrome
N42.82 Prostatosis syndrome
N42.83 Cyst of prostate
N42.89 Other specified disorders of prostate
N42.9 Disorder of prostate, unspecified
N43 Hydrocele and spermatocele
N43.0 Encysted hydrocele
N43.1 Infected hydrocele
N43.2 Other hydrocele
N43.3 Hydrocele, unspecified
N43.4 Spermatocele of epididymis
N43.40 …… unspecified
N43.41 …… single
N43.42 …… multiple
N44 Noninflammatory disorders of testis

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