2026 ICD-10-CM Diagnosis Code J84.116Cryptogenic organizing pneumonia
ICD-10-CM Codes›J00–J99›J80-J84›J84
- Billable — Valid for Submission
- Chronic Condition
J84.116 is a billable ICD-10-CM diagnosis code for cryptogenic organizing pneumonia. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 196 through 198. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified lower respiratory disease.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cryptogenic organizing pneumonia
- Idiopathic interstitial pneumonitis
- Organized pneumonia
- Seasonal cryptogenic organizing pneumonia with biochemical cholestasis
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- organizing pneumonia NOS, or due to known underlying cause J84.89
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Pneumonia(acute) (double) (migratory) (purulent) (septic) (unresolved)
- cryptogenic organizing
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Cryptogenic Organizing Pneumonia
an interstitial lung disease of unknown etiology, occurring between 21-80 years of age. it is characterized by a dramatic onset of a pneumonia-like illness with cough, fever, malaise, fatigue, and weight loss. pathological features include prominent interstitial inflammation without collagen fibrosis, diffuse fibroblastic foci, and no microscopic honeycomb change. there is excessive proliferation of granulation tissue within small airways and alveolar ducts.
Patient EducationClinical
Interstitial Lung Diseases
Interstitial lung disease is the name for a large group of diseases that inflame or scar the lungs. The inflammation and scarring make it hard to get enough oxygen. The scarring is called pulmonary fibrosis.
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Convert J84.116 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About J84.116Overview
Is J84.116 (Idiopathic interstitial pneumonia) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report cryptogenic organizing pneumonia on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does J84.116 group to?
When cryptogenic organizing pneumonia is the principal diagnosis on an inpatient stay, it groups to MS-DRG 196, 197, 198, with relative weights from 0.7162 to 1.8872 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of J84.116?
Under the General Equivalence Mappings, cryptogenic organizing pneumonia converts to ICD-9-CM 516.36 (cryptogenic organiz pneu). The mapping is a direct match.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
