prostatectomy

DEFINITION of prostatectomy

prostatectomy is the surgical extirpation or excision of the prostate gland, a walnut-sized exocrine gland in the male reproductive system located inferior to the bladder. It is clinically distinguished from transurethral resection of the prostate (TURP), which is an endoscopic partial resection primarily for BPH, and from cystoprostatectomy, which involves the en bloc removal of both the bladder and prostate. The underlying mechanism is complete or subtotal anatomical removal of the prostatic tissue, including the surgical capsule in radical procedures, to achieve oncological clearance or relieve severe urethral obstruction. It is strictly a pathological/therapeutic intervention (e.g., performed for malignant neoplasms or symptomatic hyperplasia) rather than a physiological process. Clinically relevant subtypes encountered in coding include radical prostatectomy (complete removal of the gland and seminal vesicles for cancer; C61), simple/subtotal prostatectomy (removal of the hyperplastic adenoma while leaving the surgical capsule for BPH; N40.1), and robotic-assisted laparoscopic approaches. It is commonly confused with orchiectomy (removal of the testicles, used for androgen deprivation in advanced prostate cancer) and prostatectomy|prostate biopsy (a diagnostic tissue sampling procedure rather than a therapeutic excision).

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ETYMOLOGY of prostatectomy

#Greek

Component	Origin	Meaning
prostat- / prostates	Greek προστάτης (prostatēs), from προ- (pro-) + ἱστάναι (histanai)	“one who stands before,” “protector,” “guardian” — combining form referring to the prostate gland, which “stands before” the bladder
prostate	Greek προστάτης (prostatēs), via Modern Latin prostata	”the prostate gland,” “anterior standing organ”
-ectomy	Greek ἐκτομή (ektomē), from ἐκ- (ek-) + τομή (tomē)	Noun-forming suffix — “surgical removal,” “excision,” “cutting out”

The word entered English in the late 19th century as prostatectomy (noun), borrowed from Modern Latin medical nomenclature, from Greek prostatēs (one who stands before) + ektomē (a cutting out) — literally “cutting out of the organ that stands before.” The term gained widespread clinical usage in the early 20th century following the pioneering open surgical techniques of Hugh Hampton Young and Terence Millin. The root prostat- (“standing before”) connects prostatectomy to the entire -prostat- FAMILY: prostatitis (prostat- + -itis → inflammation of the prostate), prostatomegaly (prostat- + -megaly → enlargement of the prostate), and prostatodynia (prostat- + -odynia → pain in the prostate). The suffix -ectomy is highly productive in surgical terminology — list 3-5 additional medical terms it appears in: e.g., appendectomy, cholecystectomy, hysterectomy, nephrectomy.

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🔀 ALIASES / ALTERNATE TERMS

• Radical Prostatectomy (complete surgical removal of the prostate gland, seminal vesicles, and proximal vas deferens; the standard of care for localized prostate cancer)
• Simple Prostatectomy (subtotal removal of the hyperplastic prostatic adenoma while leaving the peripheral zone and surgical capsule intact; used for massive BPH)
• Retropubic Prostatectomy (open or laparoscopic surgical approach through the space of Retzius, anterior to the bladder; common for both radical and simple procedures)
• Suprapubic Prostatectomy (open transvesical approach through the lower abdomen and bladder wall to enucleate the prostatic adenoma)
• Perineal Prostatectomy (surgical approach through an incision in the perineum between the scrotum and anus; less common today but used for patients who cannot tolerate abdominal surgery)
• Robotic-Assisted Laparoscopic Prostatectomy (RALP) (minimally invasive radical prostatectomy utilizing a robotic surgical system for enhanced 3D visualization and articulating instruments; coded under 55866)
• Nerve-Sparing Prostatectomy (surgical technique during radical prostatectomy to carefully preserve the cavernous neurovascular bundles to maintain postoperative erectile function)
• Subtotal Prostatectomy (partial removal of the prostate, synonymous with simple prostatectomy or enucleation, leaving the surgical capsule)
• Prostatic Enucleation (technique of shelling out the adenoma from the surgical capsule, often performed via open, laparoscopic, or laser approaches)

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🔗 RELATED TERMS

• Prostate — the male exocrine gland targeted by this procedure; produces seminal fluid and surrounds the prostatic urethra.
• Prostatitis — inflammation or infection of the prostate gland; a medical condition treated with antibiotics or anti-inflammatories, not typically with prostatectomy.
• Benign prostatic hyperplasia (BPH) — non-malignant enlargement of the prostate gland; the primary indication for simple prostatectomy when medical management fails.
• Cystoprostatectomy — the en bloc surgical removal of both the urinary bladder and the prostate; performed for muscle-invasive bladder cancer, distinguishing it from an isolated prostatectomy.
• Transurethral resection of the prostate (TURP) — an endoscopic procedure using a resectoscope to scrape away prostatic tissue through the urethra; differs from prostatectomy as it does not remove the entire gland or capsule.
• Pelvic lymph node dissection — the surgical removal of regional pelvic lymph nodes for cancer staging; frequently performed concurrently with a radical prostatectomy.
• Orchiectomy — surgical removal of one or both testicles; in the context of prostate cancer, bilateral orchiectomy is a form of surgical castration for androgen deprivation, not removal of the prostate itself.
• Prostate biopsy — a diagnostic procedure involving needle core sampling of prostate tissue to confirm malignancy prior to scheduling a prostatectomy.
• Erectile dysfunction — a common postoperative complication of radical prostatectomy due to potential damage to the cavernous nerves, even with nerve-sparing techniques.
• Urinary incontinence — a potential postoperative complication resulting from damage to the external urethral sphincter during the apical dissection of the prostate.

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CODING CORNER

🏥 ICD-10-CM CODES

Malignant and In Situ Neoplasms of the Prostate (Primary Indications for Radical Prostatectomy)

Code	Description
C61	Malignant neoplasm of prostate (Primary diagnosis for radical prostatectomy)
D07.5	Carcinoma in situ of prostate (High-grade prostatic intraepithelial neoplasia / localized non-invasive disease)
Z85.46	Personal history of prostate cancer (Used for follow-up encounters post-prostatectomy for malignancy)
Z90.79	Acquired absence of other genital organ(s) (Used to indicate status post prostatectomy)

Benign Prostatic Hyperplasia and Disorders (Primary Indications for Simple Prostatectomy)

Code	Description
N40.0	Benign prostatic hyperplasia without lower urinary tract symptoms (LUTS)
N40.1	Benign prostatic hyperplasia with lower urinary tract symptoms (LUTS) (Most common BPH indication for simple prostatectomy)
N42.9	Disorder of prostate, unspecified
N42.89	Other specified disorders of prostate (e.g., prostatic calculi, calcification of prostate)

Postprocedural Complications and Follow-up

Code	Description
N99.89	Other postprocedural complications and disorders of genitourinary system (e.g., post-prostatectomy urethral stricture)
N99.0	Postprocedural acute kidney failure (Rare, but possible if bilateral ureteral injury occurs during pelvic dissection)
Z48.816	Encounter for surgical aftercare following surgery on the genitourinary system

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🔧 COMMON CPT CODES (Prostatectomy Procedures)

CPT Code	Description
55866	Laparoscopy, surgical prostatectomy, retropubic radical, including nerve sparing, includes robotic manipulation, when performed
55840	Prostatectomy, retropubic radical, with or without nerve sparing
55842	Prostatectomy, retropubic radical, with or without nerve sparing; with bilateral pelvic lymphadenectomy
55845	Prostatectomy, retropubic radical, with or without nerve sparing; with bilateral pelvic lymphadenectomy, including external iliac, hypogastric, and obturator nodes
55821	Prostatectomy, suprapubic, subtotal; 1 stage (Simple prostatectomy for BPH)
55831	Prostatectomy, retropubic, subtotal, 1 stage (Simple prostatectomy for BPH)
55801	Prostatectomy, perineal, subtotal (Simple perineal approach)
55815	Prostatectomy, perineal, radical (Radical perineal approach)
52601	Transurethral electrosurgical ablation of prostate tissue (TURP); included for comparison as an endoscopic alternative
88305	Level IV - Surgical pathology, gross and microscopic examination (Routine for processing the excised prostate specimen)

Common Modifiers

Modifier	Description
-22	Increased Procedural Services (e.g., severe pelvic adhesions from prior radiation therapy or extensive prior pelvic surgery)
-62	Two Surgeons (e.g., urologist and colorectal surgeon required for complex rectal involvement or salvage prostatectomy)
-80	Assistant Surgeon (e.g., secondary surgeon assisting with pelvic lymph node dissection or complex anastomosis)
-51	Multiple Procedures (if distinct, unrelated procedures are performed in the same session)

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⚠️ Coding Note: For inpatient and profee coding, always sequence the primary diagnosis driving the surgical intervention first (e.g., sequence C61 for radical prostatectomy or N40.1 for simple prostatectomy). Do not unbundle robotic assistance or nerve-sparing techniques when billing 55866, as the CPT descriptor explicitly includes robotic manipulation and nerve sparing; billing a separate robotic add-on code or unlisted code will result in a denial. For open radical retropubic prostatectomies (55840), if the surgeon performs an extensive bilateral pelvic lymphadenectomy that goes beyond the standard template (including external iliac, hypogastric, and obturator nodes), upgrade to 55845 rather than billing a separate lymphadenectomy code. Apply modifier -22 with robust operative note documentation for “salvage prostatectomy” or cases with “severe fibrosis/adhesions secondary to prior pelvic radiation,” as these cases carry significantly higher operative time and complexity. Finally, ensure the pathology report matches the surgical claim; a radical prostatectomy specimen typically requires multiple blocks and whole-mount processing, justifying 88305 or higher-tier pathology codes if specifically documented by the pathologist.

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DERIVATIONS of prostatectomy

TABLE definition AS Definition
FROM #medterm 
WHERE length(filter(roots, (word) => econtains([[Prostatectomy]].roots, word))) > 0 AND file.name != [[Prostatectomy]].file.name
SORT file.name ASC

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Query functionality

TABLE definition AS Definition
FROM #medterm 
WHERE length(filter(definition, (word) => econtains([[Prostatectomy]].definition, word))) > 0 AND file.name != [[Prostatectomy]].file.name

Med roots dictionary Appendix A Prefixes Appendix B Combining Forms Appendix C Suffixes Appendix D Suffix forms