ICD-10-CM 2027
ICD-10 code for pleurisy
From the official ICD-10-CM alphabetic index entry “Pleurisy (acute) (adhesive) (chronic) (costal) (diaphragmatic) (double) (dry) (fibrinous) (fibrous) (interlobar) (latent) (plastic) (primary) (residual) (sicca) (sterile) (subacute) (unresolved)”. Page updated September 29, 2026.
About coding pleurisy
The ICD-10-CM code for pleurisy is R09.1 (Pleurisy). The official index lists 10 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R09.1.
Within R09 (other symptoms and signs involving the circulatory and respiratory system), R09.1 is specifically for pleurisy. Related codes cover asphyxia and hypoxemia (R09.0), respiratory arrest (R09.2), abnormal sputum (R09.3), other specified symptoms and signs involving the circulatory and respiratory systems (R09.8) and foreign body sensation of the circulatory and respiratory system (R09.A).
Don't report R09.1 together with the conditions in its Excludes1 note: pleurisy with effusion (J90).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific pleurisy codes (official index)
- with
- adherent pleura J86.0 — Pyothorax with fistula
- effusion J90 — Pleural effusion, not elsewhere classified
- chylous, chyliform J94.0 — Chylous effusion
- tuberculous (non primary) A15.6 — Tuberculous pleurisy
- primary (progressive) A15.7 — Primary respiratory tuberculosis
- tuberculosis
- encysted
- exudative
- fibrinopurulent, fibropurulent
- hemorrhagic
- pneumococcal J90 — Pleural effusion, not elsewhere classified
- purulent
- septic
- serofibrinous
- seropurulent
- serous
- staphylococcal J86.9 — Pyothorax without fistula
- streptococcal J90 — Pleural effusion, not elsewhere classified
- suppurative
- traumatic (post) (current)
- tuberculous (with effusion) (non primary) A15.6 — Tuberculous pleurisy
- primary (progressive) A15.7 — Primary respiratory tuberculosis
Don't confuse with (Excludes1 for R09.1)
- pleurisy with effusion (J90)
Common questions about pleurisy ICD-10 codes
What is the ICD-10 code for pleurisy?
- R09.1 — Pleurisy. More specific codes apply when the documentation supports them: J86.0, J90, J94.0, A15.6 and others below.
What is the ICD-10 code for pneumococcal pleurisy?
- J90 — Pleural effusion, not elsewhere classified.
What is the ICD-10 code for staphylococcal pleurisy?
- J86.9 — Pyothorax without fistula.
What is the ICD-10 code for streptococcal pleurisy?
- J90 — Pleural effusion, not elsewhere classified.
What is the ICD-10 code for tuberculous pleurisy?
- A15.6 — Tuberculous pleurisy.
Is R09.1 billable?
- Yes. R09.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R09.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R09.1 as a principal diagnosis.
Is R09.1 a CC or MCC?
- No. R09.1 is neither a CC nor an MCC under MS-DRG v44.0.