J90 — Pleural effusion, not elsewhere classified
J90 is a billable, specific ICD-10-CM code for pleural effusion, not elsewhere classified. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Encysted pleurisy
- Pleural effusion NOS
- Pleurisy with effusion (exudative) (serous)
Other codes that can never be billed with J90
These codes carry an Excludes1 note pointing at J90. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading J90 alone.
- R09.1Pleurisy
Risk adjustment
J90 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
J90 is named in 8 Medicare coverage policies — 8 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56464Billing and Coding: Flow Cytometry
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
- A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
- A56730Billing and Coding: Respiratory Therapy and Oximetry Services
How J90 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to J90.
- Effusion›pleura, pleurisy, pleuritic, pleuropericardial
- Pleurisy›pneumococcal
- Pleurisy›streptococcal
- Pleurisy›with›effusion
Questions about J90
- Is J90 a billable ICD-10-CM code?
- Yes. J90 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does J90 sit in the tabular list?
- Diseases of the respiratory system (J00-J99), in the block Other diseases of the pleura (J90-J94).
- What cannot be coded together with J90?
- J90 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.