ICD-10-CM 2027
ICD-10 code for prostate stone
From the official ICD-10-CM alphabetic index entry “Stone (s) › prostate”. Page updated September 29, 2026.
About coding prostate stone
The ICD-10-CM code for prostate stone is N42.0 (Calculus of prostate).
Within N42 (other and unspecified disorders of prostate), N42.0 is specifically for calculus of prostate. Related codes cover congestion and hemorrhage of prostate (N42.1), dysplasia of prostate (N42.3), other specified disorders of prostate (N42.8) and disorder of prostate, unspecified (N42.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 729 (Other Male Reproductive System Diagnoses with CC/MCC, relative weight 1.0544) and DRG 730 (Other Male Reproductive System Diagnoses without CC/MCC, relative weight 0.6597), in MDC 12 (Diseases and Disorders of the Male Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about prostate stone ICD-10 codes
What is the ICD-10 code for prostate stone?
- N42.0 — Calculus of prostate.
Is N42.0 billable?
- Yes. N42.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N42.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N42.0 as a principal diagnosis.
Is N42.0 a CC or MCC?
- No. N42.0 is neither a CC nor an MCC under MS-DRG v44.0.