ICD-10-CM 2027
ICD-10 code for lacunar abscess
From the official ICD-10-CM alphabetic index entry “Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › lacunar”. Page updated September 29, 2026.
About coding lacunar abscess
The ICD-10-CM code for lacunar abscess is N34.0 (Urethral abscess).
Within N34 (urethritis and urethral syndrome), N34.0 is specifically for urethral abscess. Related codes cover nonspecific urethritis (N34.1), other urethritis (N34.2) and urethral syndrome, unspecified (N34.3).
Don't report N34.0 together with the conditions in its Excludes1 note: urethral caruncle (N36.2).
Use an additional code (B95-B97), to identify infectious agent.
Don't confuse with (Excludes1 for N34.0)
- urethral caruncle (N36.2)
Common questions about lacunar abscess ICD-10 codes
What is the ICD-10 code for lacunar abscess?
- N34.0 — Urethral abscess.
Is N34.0 billable?
- Yes. N34.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N34.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N34.0 as a principal diagnosis.
Is N34.0 a CC or MCC?
- N34.0 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.