ICD-10-CM 2027
ICD-10 code for pleura abscess
From the official ICD-10-CM alphabetic index entry “Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › pleura”. Page updated September 29, 2026.
About coding pleura abscess
The ICD-10-CM code for pleura abscess is J86.9 (Pyothorax without fistula). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on J86.9.
Within J86, choose J86.9 (without fistula) only when documentation doesn't support a more specific option: with fistula (J86.0).
Use an additional code (B95-B97) to identify infectious agent.
As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" MS-DRG of its family, unless the principal diagnosis excludes it.
More specific pleura abscess codes (official index)
- with fistula J86.0 — Pyothorax with fistula
Common questions about pleura abscess ICD-10 codes
What is the ICD-10 code for pleura abscess?
- J86.9 — Pyothorax without fistula. More specific codes apply when the documentation supports them: J86.0.
Is J86.9 billable?
- Yes. J86.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J86.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J86.9 as a principal diagnosis.
Is J86.9 a CC or MCC?
- J86.9 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.