ICD-10-CM 2027
ICD-10 code for respiratory system complication
From the official ICD-10-CM alphabetic index entry “Complication (s) (from) (of) › respiratory system”. Page updated September 29, 2026.
About coding respiratory system complication
The ICD-10-CM code for respiratory system complication is J98.9 (Respiratory disorder, unspecified). The official index lists 12 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on J98.9.
Within J98, choose J98.9 (Respiratory disorder, unspecified) only when documentation doesn't support a more specific option: diseases of bronchus, not elsewhere classified (J98.0), pulmonary collapse (J98.1), interstitial emphysema (J98.2), Compensatory emphysema (J98.3), other disorders of lung (J98.4), diseases of mediastinum, not elsewhere classified (J98.5), disorders of diaphragm (J98.6) and other specified respiratory disorders (J98.8).
Use an additional code to identify: exposure to environmental tobacco smoke (Z77.22), exposure to tobacco smoke in the perinatal period (P96.81), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31), tobacco dependence (F17.-) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific respiratory system complication codes (official index)
- device, implant or graft
- lung transplant
- postoperative J95.89 — Other postprocedural complications and disorders of respiratory system, not elsewhere classified
- air leak J95.812 — Postprocedural air leak
- Mendelson's syndrome (chemical pneumonitis) J95.4 — Chemical pneumonitis due to anesthesia
- pneumothorax J95.811 — Postprocedural pneumothorax
- pulmonary insufficiency (acute) (after nonthoracic surgery) J95.2 — Acute pulmonary insufficiency following nonthoracic surgery
- chronic J95.3 — Chronic pulmonary insufficiency following surgery
- following thoracic surgery J95.1 — Acute pulmonary insufficiency following thoracic surgery
- respiratory failure (acute) J95.821 — Acute postprocedural respiratory failure
- acute and chronic J95.822 — Acute and chronic postprocedural respiratory failure
- specified NEC J95.89 — Other postprocedural complications and disorders of respiratory system, not elsewhere classified
- subglottic stenosis J95.5 — Postprocedural subglottic stenosis
- tracheostomy complication
- therapy T81.89 — Other complications of procedures, not elsewhere classified
Common questions about respiratory system complication ICD-10 codes
What is the ICD-10 code for respiratory system complication?
- J98.9 — Respiratory disorder, unspecified. More specific codes apply when the documentation supports them: J95.89, J95.812, J95.4, J95.811 and others below.
What is the ICD-10 code for postoperative respiratory system complication?
- J95.89 — Other postprocedural complications and disorders of respiratory system, not elsewhere classified.
What is the ICD-10 code for therapy respiratory system complication?
- T81.89 — Other complications of procedures, not elsewhere classified (header code; choose a more specific subcode).
Is J98.9 billable?
- Yes. J98.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J98.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J98.9 as a principal diagnosis.
Is J98.9 a CC or MCC?
- No. J98.9 is neither a CC nor an MCC under MS-DRG v44.0.