Is J84.115 a billable ICD-10-CM code?

Yes. J84.115 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does J84.115 sit in the tabular list?

Diseases of the respiratory system (J00-J99), in the block Other respiratory diseases principally affecting the interstitium (J80-J84).

What cannot be coded together with J84.115?

J84.115 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above J84.115 (J84.11, J84.1, J84) and apply to it just the same.

J84.115

J84.115 — Respiratory bronchiolitis interstitial lung disease

Billable / specific codeICD-10-CM

J84.115 is a billable, specific ICD-10-CM code for respiratory bronchiolitis interstitial lung disease. It is valid for submission on a claim.

Excludes1 inherited from the categories above J84.115

These are not written on J84.115, but they bind it: a note on a category applies to every code beneath it. Billing J84.115 with anything listed here is a denial.

Written on J84.11 — Idiopathic interstitial pneumonia

lymphoid interstitial pneumonia (J84.2)
pneumocystis pneumonia (B59)

Written on J84.1 — Other interstitial pulmonary diseases with fibrosis

pulmonary fibrosis (chronic) following radiation (J70.1)

Written on J84 — Other interstitial pulmonary diseases

drug-induced interstitial lung disorders (J70.2-J70.4)
interstitial emphysema (J98.2)

Excludes2 inherited from the categories above J84.115

Also inherited, and the opposite of Excludes1: these conditions are not part of J84.115, but a patient can have both, so you may code both.

Written on J84 — Other interstitial pulmonary diseases

lung diseases due to external agents (J60-J70)

Risk adjustment

J84.115 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

HCC 280 Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders0.319 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

J84.115 is named in 10 Medicare coverage policies — 10 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A55639Billing and Coding: Chemotherapy Agents for Non-Oncologic Conditions
A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
A56730Billing and Coding: Respiratory Therapy and Oximetry Services

How J84.115 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 J84.115.

Bronchiolitis›respiratory, interstitial lung disease
Disease, diseased›lung›interstitial›respiratory bronchiolitis

Code history

J84.115 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share J84.11. If J84.115 is not quite right, the correct code is usually one of these.

Questions about J84.115

Is J84.115 a billable ICD-10-CM code?: Yes. J84.115 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does J84.115 sit in the tabular list?: Diseases of the respiratory system (J00-J99), in the block Other respiratory diseases principally affecting the interstitium (J80-J84).
What cannot be coded together with J84.115?: J84.115 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above J84.115 (J84.11, J84.1, J84) and apply to it just the same.