Is J20 a billable ICD-10-CM code?

No. J20 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does J20 sit in the tabular list?

Diseases of the respiratory system (J00-J99), in the block Other acute lower respiratory infections (J20-J22).

What cannot be coded together with J20?

J20 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

J20

J20 — Acute bronchitis

Non-billable headerICD-10-CM

J20 is a non-billable header ICD-10-CM code for acute bronchitis. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

bronchitis NOS (J40)
tracheobronchitis NOS (J40)

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

acute bronchitis with bronchiectasis (J47.0)
acute bronchitis with chronic obstructive asthma (J44.0)
acute bronchitis with chronic obstructive pulmonary disease (J44.0)
allergic bronchitis NOS (J45.909)
bronchitis due to chemicals, fumes and vapors (J68.0)
chronic bronchitis NOS (J42)
chronic mucopurulent bronchitis (J41.1)
chronic obstructive bronchitis (J44.-)
chronic obstructive tracheobronchitis (J44.-)
chronic simple bronchitis (J41.0)
chronic tracheobronchitis (J42)

Includes

Conditions this code covers.

acute and subacute bronchitis (with) bronchospasm
acute and subacute bronchitis (with) tracheitis
acute and subacute bronchitis (with) tracheobronchitis, acute
acute and subacute fibrinous bronchitis
acute and subacute membranous bronchitis
acute and subacute purulent bronchitis
acute and subacute septic bronchitis

Other codes that can never be billed with J20

These codes carry an Excludes1 note pointing at J20. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading J20 alone.

B97.4Respiratory syncytial virus as the cause of diseases classified elsewhere
J40Bronchitis, not specified as acute or chronic
J98.01Acute bronchospasm

Risk adjustment

J20 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.

Code to one of these instead J20

10 child codes. Green means billable.

Questions about J20

Is J20 a billable ICD-10-CM code?: No. J20 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does J20 sit in the tabular list?: Diseases of the respiratory system (J00-J99), in the block Other acute lower respiratory infections (J20-J22).
What cannot be coded together with J20?: J20 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.