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J93.12

J93.12: Secondary spontaneous pneumothorax

Billable / specific codeICD-10-CM

J93.12 is a billable, specific ICD-10-CM code for secondary spontaneous pneumothorax. It is valid for submission on a claim.

Check J93.12 with the rest of the claim: free scrubber

Code first

The underlying condition must be sequenced before this code.

  • underlying condition, such as:
  • catamenial pneumothorax due to endometriosis (N80.B-)
  • cystic fibrosis (E84.-)
  • eosinophilic pneumonia (J82.81-J82.82)
  • lymphangioleiomyomatosis (J84.81)
  • malignant neoplasm of bronchus and lung (C34.-)
  • Marfan syndrome (Q87.4-)
  • pneumonia due to Pneumocystis carinii (B59)
  • secondary malignant neoplasm of lung (C78.0-)
  • spontaneous rupture of the esophagus (K22.3)

Excludes1 inherited from the categories above J93.12

A category’s note binds every code beneath it.

Written on J93: Pneumothorax and air leak

  • congenital or perinatal pneumothorax (P25.1)
  • postprocedural air leak (J95.812)
  • postprocedural pneumothorax (J95.811)
  • traumatic pneumothorax (S27.0)
  • tuberculous (current disease) pneumothorax (A15.-)
  • pyopneumothorax (J86.-)

Other codes that can never be billed with J93.12

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • S27.0Traumatic pneumothorax
  • S27.0XXATraumatic pneumothorax, initial encounter
  • S27.0XXDTraumatic pneumothorax, subsequent encounter
  • S27.0XXSTraumatic pneumothorax, sequela

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

J93.12 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
  • A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
  • A57205Billing and Coding: Oximetry Services
  • A57224Billing and Coding: Respiratory Care

Alphabetic index entries that lead here

  • Pneumothorax NOS›spontaneous NOS›secondary

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under J93.1

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.