2026 ICD-10-CM Diagnosis Code J86.0Pyothorax with fistula

ICD-10-CM Codes›J00–J99›J85-J86›J86

ICD-10-CM J86.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

J86.0 is a billable ICD-10-CM diagnosis code for pyothorax with fistula. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 177 through 179. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Pleurisy, pleural effusion and pulmonary collapse.

Code Identity

ICD-10-CM Code
J86.0
Billable Status
Yes — Valid for Submission
Code Describes
Pyothorax with fistula
Short Description
Pyothorax with fistula
Same as the full description in the CMS dataset.
Parent Code
J86
Pyothorax

Code Classification

ChapterJ00–J99Diseases of the respiratory system
SectionJ85-J86Suppurative and necrotic conditions of the lower respiratory tract
CategoryJ86Pyothorax
This CodeJ86.0Pyothorax with fistula

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired bronchoesophageal fistula
  • Acquired fistula of esophagus
  • Acquired tracheal fistula
  • Acquired tracheocutaneous fistula
  • Acquired tracheo-esophageal fistula
  • Bronchial fistula
  • Bronchocutaneous fistula
  • Broncho-esophageal fistula
  • Bronchopleural fistula
  • Bronchopleural subphrenic fistula
  • Congenital esophageal fistula
  • Congenital esophagotracheal fistula
  • Congenital tracheal fistula
  • Empyema with bronchocutaneous fistula
  • Empyema with bronchopleural fistula
  • Empyema with hepatopleural fistula
  • Empyema with mediastinal fistula
  • Fistula of bronchial stump
  • Pleural empyema with fistula
  • Pleuroperitoneal fistula
  • Tracheal esophageal fistula cough
  • Tracheoesophageal fistula
  • Tracheo-esophageal fistula without atresia of esophagus
  • Traumatic bronchopleural fistula

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Bronchocutaneous fistula
  • Bronchopleural fistula
  • Hepatopleural fistula
  • Mediastinal fistula
  • Pleural fistula
  • Thoracic fistula
  • Any condition classifiable to J86.9

Code Also

  • , if applicable, disruption of internal operation surgical wound T81.32

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • chest
        • with fistula
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • peripleuritic
        • with fistula
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • pleura
        • with fistula
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • thorax
        • with fistula
    • Empyema(acute) (chest) (double) (pleura) (supradiaphragmatic) (thorax)
      • with fistula
    • Fistula(cutaneous)
      • abdominothoracic
    • Fistula(cutaneous)
      • bronchial
    • Fistula(cutaneous)
      • bronchocutaneous, bronchomediastinal, bronchopleural, bronchopleuromediastinal (infective)
    • Fistula(cutaneous)
      • bronchoesophageal
    • Fistula(cutaneous)
      • bronchovisceral
    • Fistula(cutaneous)
      • chest (wall)
    • Fistula(cutaneous)
      • costal region
    • Fistula(cutaneous)
      • diaphragm
    • Fistula(cutaneous)
      • esophagobronchial
    • Fistula(cutaneous)
      • esophagopleural-cutaneous
    • Fistula(cutaneous)
      • esophagotracheal
    • Fistula(cutaneous)
      • hepatopleural
    • Fistula(cutaneous)
      • hepatopulmonary
    • Fistula(cutaneous)
      • lung
    • Fistula(cutaneous)
      • mediastinal
    • Fistula(cutaneous)
      • mediastinobronchial
    • Fistula(cutaneous)
      • mediastinocutaneous
    • Fistula(cutaneous)
      • pleura, pleural, pleurocutaneous, pleuroperitoneal
    • Fistula(cutaneous)
      • pulmonary
    • Fistula(cutaneous)
      • pulmonoperitoneal
    • Fistula(cutaneous)
      • thoracic
    • Fistula(cutaneous)
      • thoracoabdominal
    • Fistula(cutaneous)
      • thoracogastric
    • Fistula(cutaneous)
      • thoracointestinal
    • Fistula(cutaneous)
      • thorax
    • Fistula(cutaneous)
      • tracheoesophageal
    • Pleurisy(acute) (adhesive) (chronic) (costal) (diaphragmatic) (double) (dry) (fibrinous) (fibrous) (interlobar) (latent) (plastic) (primary) (residual) (sicca) (sterile) (subacute) (unresolved)
      • with
        • adherent pleura
    • Pneumopyothorax
      • with fistula
    • Pyopneumothorax(infective)
      • with fistula
    • Pyothorax
      • with fistula

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR RSP011
Pleurisy, pleural effusion and pulmonary collapse
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Bronchial Fistula

    an abnormal passage or communication between a bronchus and another part of the body.

  • Tracheoesophageal Fistula

    abnormal passage between the esophagus and the trachea, acquired or congenital, often associated with esophageal atresia.

  • Empyema with Fistula

    an empyema with a fistula.

Patient EducationClinical

Abscess

An abscess is a pocket of pus. You can get an abscess almost anywhere in your body. When an area of your body becomes infected, your body's immune system tries to fight the infection. White blood cells go to the infected area, collect within the damaged tissue, and cause inflammation. During this process, pus forms.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert J86.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
510.0 Empyema with fistula
Approximate The match is approximate rather than exact.
ICD-9-CM
530.84 Tracheoesophageal fstula
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About J86.0Overview

Is J86.0 (Pyothorax) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report pyothorax with fistula on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does J86.0 group to?

When pyothorax with fistula is the principal diagnosis on an inpatient stay, it groups to MS-DRG 177, 178, 179, with relative weights from 0.7550 to 1.5627 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of J86.0?

Under the General Equivalence Mappings, pyothorax with fistula converts to ICD-9-CM 510.0 (empyema with fistula) and 530.84 (tracheoesophageal fstula). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.