Is J70.4 a billable ICD-10-CM code?

Yes. J70.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does J70.4 sit in the tabular list?

Diseases of the respiratory system (J00-J99), in the block Lung diseases due to external agents (J60-J70).

What cannot be coded together with J70.4?

J70.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

J70.4

J70.4 — Drug-induced interstitial lung disorders, unspecified

Billable / specific codeICD-10-CMunspecified

J70.4 is a billable, specific ICD-10-CM code for drug-induced interstitial lung disorders, unspecified. 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.

interstitial pneumonia NOS (J84.9)
lymphoid interstitial pneumonia (J84.2)

Use additional code

Add a secondary code to capture the detail described below.

code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Other codes that can never be billed with J70.4

These codes carry an Excludes1 note pointing at J70.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading J70.4 alone.

J18Pneumonia, unspecified organism
J84Other interstitial pulmonary diseases

Risk adjustment

J70.4 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

J70.4 is named in 12 Medicare coverage policies — 12 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52466Nebulizers - Policy Article
A52466Nebulizers - Policy Article
A52466Nebulizers - Policy Article
A52466Nebulizers - Policy Article

How J70.4 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 J70.4.

Disorder›lung, interstitial, drug-induced
Pneumonitis›chemotherapy

Related codes at this level

Codes that share J70. If J70.4 is not quite right, the correct code is usually one of these.

Questions about J70.4

Is J70.4 a billable ICD-10-CM code?: Yes. J70.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does J70.4 sit in the tabular list?: Diseases of the respiratory system (J00-J99), in the block Lung diseases due to external agents (J60-J70).
What cannot be coded together with J70.4?: J70.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.