K22.0 – Achalasia of cardia

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

Billable code

ICD-10-CM code K22.0

Code: K22.0 (claims format: K220)
Description: Achalasia of cardia
Billable: Yes – valid for HIPAA-covered transactions
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

Notes for K22.0

Applicable to:

Achalasia NOS
Cardiospasm

Excludes1 (not coded here):

congenital cardiospasm (Q39.5)

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.-)

Index terms for K22.0

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in K22

K22.1 – Ulcer of esophagusHeader
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 K22.0?

K22.0 is the ICD-10-CM code for achalasia of cardia, in the block K20-K31 (Diseases of esophagus, stomach and duodenum).

Is K22.0 a billable code?

Yes. K22.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does K22.0 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.