Is K22.1 a billable ICD-10-CM code?

No. K22.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does K22.1 sit in the tabular list?

Diseases of the digestive system (K00-K95), in the block Diseases of esophagus, stomach and duodenum (K20-K31).

What cannot be coded together with K22.1?

K22.1 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

K22.1

K22.1 — Ulcer of esophagus

Non-billable headerICD-10-CM

K22.1 is a non-billable header ICD-10-CM code for ulcer of esophagus. 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.

Barrett's esophagus (K22.7-)

Code first

The underlying condition must be sequenced before this code.

poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)

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)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Barrett's ulcer
Erosion of esophagus
Fungal ulcer of esophagus
Peptic ulcer of esophagus
Ulcer of esophagus due to ingestion of chemicals
Ulcer of esophagus due to ingestion of drugs and medicaments
Ulcerative esophagitis

Other codes that can never be billed with K22.1

These codes carry an Excludes1 note pointing at K22.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K22.1 alone.

K20Esophagitis
K22.7Barrett's esophagus

Risk adjustment

K22.1 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 K22.1

2 child codes. Green means billable.

Related codes at this level

Codes that share K22. If K22.1 is not quite right, the correct code is usually one of these.

Questions about K22.1

Is K22.1 a billable ICD-10-CM code?: No. K22.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does K22.1 sit in the tabular list?: Diseases of the digestive system (K00-K95), in the block Diseases of esophagus, stomach and duodenum (K20-K31).
What cannot be coded together with K22.1?: K22.1 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.