ICD-10-CM Code N45

Orchitis and epididymitis

Version 2020 Non-Billable Code

Not Valid for Submission

N45 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of orchitis and epididymitis. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:N45
Short Description:Orchitis and epididymitis
Long Description:Orchitis and epididymitis

Consider the following ICD-10 codes with a higher level of specificity:

  • N45.1 - Epididymitis
  • N45.2 - Orchitis
  • N45.3 - Epididymo-orchitis
  • N45.4 - Abscess of epididymis or testis

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code N45:

Use Additional Code

Use Additional Code
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 Classification

  • Diseases of the genitourinary system (N00–N99)
    • Diseases of male genital organs (N40-N53)
      • Orchitis and epididymitis (N45)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Testicular Disorders

Testicles, or testes, make male hormones and sperm. They are two egg-shaped organs inside the scrotum, the loose sac of skin behind the penis. It's easy to injure your testicles because they are not protected by bones or muscles. Men and boys should wear athletic supporters when they play sports.

You should examine your testicles monthly and seek medical attention for lumps, redness, pain or other changes. Testicles can get inflamed or infected. They can also develop cancer. Testicular cancer is rare and highly treatable. It usually happens between the ages of 15 and 40.


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