ICD-10-CM 2027
ICD-10 code for thoracic fistula
From the official ICD-10-CM alphabetic index entry “Fistula (cutaneous) › thoracic”. Page updated September 29, 2026.
About coding thoracic fistula
The ICD-10-CM code for thoracic fistula is J86.0 (Pyothorax with 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 J86.0.
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.
More specific thoracic fistula codes (official index)
- duct I89.8 — Other specified noninfective disorders of lymphatic vessels and lymph nodes
Common questions about thoracic fistula ICD-10 codes
What is the ICD-10 code for thoracic fistula?
- J86.0 — Pyothorax with fistula. More specific codes apply when the documentation supports them: I89.8.
What is the ICD-10 code for duct thoracic fistula?
- I89.8 — Other specified noninfective disorders of lymphatic vessels and lymph nodes.
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.