K22.1 – Ulcer of esophagus

ICD-10-CM 2027 diagnosis code · Diseases of esophagus, stomach and duodenum

Non-billable header

ICD-10-CM code K22.1

Code: K22.1 (claims format: K221)
Description: Ulcer of esophagus
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 11. Diseases of the digestive system (K00-K95)
Block: K20-K31 Diseases of esophagus, stomach and duodenum
Parent codes: K22

Billable codes under K22.1

K22.1 is a header code and cannot be used on claims. Choose the most specific code:

K22.10 – Ulcer of esophagus without bleedingBillable
K22.11 – Ulcer of esophagus with bleedingBillable

Notes for K22.1

Applicable to:

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

Excludes1 (not coded here):

Barrett's esophagus (K22.7-)

Code first:

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

Use additional code:

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

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

K22 – Other diseases of esophagus

Excludes2 (not included here):

esophageal varices (I85.-)

Block K20-K31

Excludes2 (not included here):

hiatus hernia (K44.-)

Related codes in K22

K22.0 – Achalasia of cardiaBillable
K22.2 – Esophageal obstructionBillable
K22.3 – Perforation of esophagusBillable
K22.4 – Dyskinesia of esophagusBillable
K22.5 – Diverticulum of esophagus, acquiredBillable
K22.6 – Gastro-esophageal laceration-hemorrhage syndromeBillable
K22.7 – Barrett's esophagusHeader
K22.8 – Other specified diseases of esophagusHeader
K22.9 – Disease of esophagus, unspecifiedBillable

Frequently asked questions

What is ICD-10 code K22.1?

K22.1 is the ICD-10-CM code for ulcer of esophagus, in the block K20-K31 (Diseases of esophagus, stomach and duodenum).

Is K22.1 a billable code?

No. K22.1 is a header code with more specific child codes; report one of the billable codes listed above.

What category does K22.1 belong to?

It belongs to category K22 – Other diseases of esophagus.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.