ICD-10-CM 2027
ICD-10 code for Costal region fistula
From the official ICD-10-CM alphabetic index entry “Fistula (cutaneous) › costal region”. Page updated September 29, 2026.
About coding Costal region fistula
The ICD-10-CM code for Costal region fistula is J86.0 (Pyothorax with fistula).
Within J86 (Pyothorax), J86.0 is specifically for Pyothorax with fistula. Related codes cover without fistula (J86.9).
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.
Common questions about Costal region fistula ICD-10 codes
What is the ICD-10 code for Costal region fistula?
- J86.0 — Pyothorax with fistula.
Is J86.0 billable?
- Yes. J86.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J86.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J86.0 as a principal diagnosis.
Is J86.0 a CC or MCC?
- J86.0 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.