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ICD-10-CM 2027 diagnosis code

J82.82Acute eosinophilic pneumonia

✓ Billable / specificCC — complication/comorbidity

J82.82 is a valid, billable ICD-10-CM code for acute eosinophilic pneumonia. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code last changed in FY2021 (effective October 1, 2020). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About J82.82

J82.82 is the ICD-10-CM diagnosis code for acute eosinophilic pneumonia. It belongs to category J82 (pulmonary eosinophilia, not elsewhere classified), block J80-J84 (other respiratory diseases principally affecting the interstitium) and chapter 10 (diseases of the respiratory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within J82.8 (pulmonary eosinophilia, not elsewhere classified), J82.82 is specifically for acute eosinophilic pneumonia. Related codes cover chronic eosinophilic pneumonia (J82.81), eosinophilic asthma (J82.83) and other pulmonary eosinophilia, not elsewhere classified (J82.89).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 196 (Interstitial Lung Disease with MCC, relative weight 1.8336), DRG 197 (Interstitial Lung Disease with CC, relative weight 0.9492) and DRG 198 (Interstitial Lung Disease without CC/MCC, relative weight 0.7259), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It was added in FY2021, effective October 1, 2020.

Notes that apply from higher levels

Instructions written at a parent level also apply to J82.82.

› From J82 Pulmonary eosinophilia, not elsewhere classified
Excludes2
  • pulmonary eosinophilia due to aspergillosis (B44.-)
  • pulmonary eosinophilia due to drugs (J70.2-J70.4)
  • pulmonary eosinophilia due to specified parasitic infection (B50-B83)
  • pulmonary eosinophilia due to systemic connective tissue disorders (M30-M36)
  • pulmonary infiltrate NOS (R91.8)

Broader instructions also apply from Chapter 10: Diseases of the respiratory system.

Alphabetic index entries

3 entries

Terms in the official ICD-10-CM index that lead to J82.82.

Codes whose notes reference J82.82

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2021 (effective 10/1/2020): Added
  • No changes since FY2021.

Common questions about J82.82

Is J82.82 billable?

Yes. J82.82 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can J82.82 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict J82.82 as a principal diagnosis.

Is J82.82 a CC or MCC?

J82.82 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does J82.82 group to?

J82.82 is used in the MS-DRG v44.0 logic for MS-DRG 196 (Interstitial Lung Disease with MCC), MS-DRG 197 (Interstitial Lung Disease with CC) and MS-DRG 198 (Interstitial Lung Disease without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.