ICD-10-CM Tabular Index · Chapter 14 · FY 2026 N43

Hydrocele and spermatocele (N43) ICD-10-CM

The N43 code range covers hydrocele and spermatocele with 9 ICD-10-CM diagnosis codes. 7 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
9
Diagnosis Codes
7
Billable Codes
N43
Code Range
N40–N53
Parent Section

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

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.

ICD-10-CM

Codes in the N43 Range 9 codes · 7 billable

9 of 9 shown
  • N43 Hydrocele and spermatoceleNon-billable
  • N43.0 Encysted hydrocele
  • N43.1 Infected hydrocele
  • N43.2 Other hydrocele
  • N43.3 Hydrocele, unspecified
  • N43.4 Spermatocele of epididymisNon-billable
  • N43.40 Spermatocele of epididymis, unspecified
  • N43.41 Spermatocele of epididymis, single
  • N43.42 Spermatocele of epididymis, multiple

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the N43 range.

Spermatocele

A cystic dilation of the EPIDIDYMIS, usually in the head portion (caput epididymis). The cyst fluid contains dead SPERMATOZOA and can be easily differentiated from TESTICULAR HYDROCELE and other testicular lesions.

About the N43 Code Range

The ICD-10 code section N43 is used specifically for classifying different types of hydrocele and spermatocele, two conditions affecting the male genital area. These codes help identify precise diagnoses such as encysted hydrocele, infected hydrocele, and various forms of spermatocele.

Hydrocele and spermatocele (N43) cover conditions like the encysted hydrocele (N43.0), also known as hydrocele of the spermatic cord, and the infected hydrocele (N43.1), which refers to inflammation in the hydrocele of the testis or tunica vaginalis. Other hydrocele (N43.2) accounts for less common variations, while hydrocele, unspecified (N43.3) includes acquired or post-traumatic hydroceles and hydroceles involving the tunica vaginalis. For cystic masses in the epididymis, spermatocele of epididymis is coded under N43.4, with subcategories specifying unspecified (N43.40), single (N43.41), or multiple (N43.42) spermatoceles. These detailed codes assist coders and healthcare providers in selecting precise diagnoses, supporting accurate medical documentation and communication. Using the ICD-10 code for hydrocele and spermatocele allows clear identification of these male genital conditions, including synonyms like cyst of epididymis and adult hydrocele.

Questions About This Page

How many billable codes are in the N43 range?

Of the 9 codes in this range, 7 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the N43 range classify?

The range classifies hydrocele and spermatocele. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.