Is J64 a billable ICD-10-CM code?

Yes. J64 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does J64 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 J64?

J64 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

J64

J64 — Unspecified pneumoconiosis

Billable / specific codeICD-10-CM

J64 is a billable, specific ICD-10-CM code for unspecified pneumoconiosis. 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.

pneumonoconiosis with tuberculosis, any type in A15 (J65)

Risk adjustment

J64 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

J64 is named in 15 Medicare coverage policies — 13 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56566Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
A57067Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
A52466Nebulizers - Policy Article
A52466Nebulizers - Policy Article

How J64 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 J64.

Pneumoconiosis(due to) (inhalation of)
Asthma, asthmatic›pneumoconiotic NEC
Fibrosis, fibrotic›lung›with›dust reticulation
Fibrosis, fibrotic›lung›with›pneumoconiosis NOS

Questions about J64

Is J64 a billable ICD-10-CM code?: Yes. J64 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does J64 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 J64?: J64 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.