N42.0 Calculus of prostate

Billable ICD-10-CM code, FY2026.

Applicable to

• Prostatic stone

MS-DRG index

Defines the logic of DRG(s) 729-730 in MDC 12.

Approximate ICD-9-CM (GEMs)

• 602.0 Calculus of prostate

Medicare Code Edits (MCE v43.1 (April 2026))

• Adult diagnoses (age 15 through 124): Age conflict edit. These diagnoses are clinically expected only in patients age 15 through 124.

Code annotations containing back-references to N42.0

Back-references to N42.0

• Type 2 Excludes: N21.1 Calculus in urethra ("calculus of prostate (N42.0)")

Diagnosis Index entries for N42.0

• Calculus, calculi, calculous › prostate
• Stone (s) › prostate

Nearby codes

• N42 Other and unspecified disorders of prostate
• N42.0 Calculus of prostate (this code)
• N42.1 Congestion and hemorrhage of prostate
• N42.3 Dysplasia of prostate
• N42.30 Unspecified dysplasia of prostate
• N42.31 Prostatic intraepithelial neoplasia
• N42.32 Atypical small acinar proliferation of prostate