ICD-10-CM 2027 diagnosis code

N43.4Spermatocele of epididymis

Not billable — use a more specific code

N43.4 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About N43.4

N43.4 is the ICD-10-CM diagnosis code for spermatocele of epididymis. It belongs to category N43 (hydrocele and spermatocele), block N40-N53 (diseases of male genital organs) and chapter 14 (diseases of the genitourinary system). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within N43 (hydrocele and spermatocele), N43.4 is specifically for spermatocele of epididymis. Related codes cover Encysted hydrocele (N43.0), infected hydrocele (N43.1), other hydrocele (N43.2) and hydrocele, unspecified (N43.3).

To report this condition, pick the subcode that matches the documentation: N43.40 (unspecified), N43.41 (single) and N43.42 (multiple).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under N43.4

Coding notes

Applicable toConditions and synonyms classified to this code

Spermatic cyst

Notes that apply from higher levels

Instructions written at a parent level also apply to N43.4.

› From N43 Hydrocele and spermatocele

Includes

hydrocele of spermatic cord, testis or tunica vaginalis

Excludes1

congenital hydrocele (P83.5)

Broader instructions also apply from Chapter 14: Diseases of the genitourinary system.

Code history

2016
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2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about N43.4

Is N43.4 billable?: No. N43.4 is a header code. Report one of its more specific subcodes instead.