2020

  1. ICD-10-CM Codes
    2. ›
  2. K00-K95 Diseases of the digestive system
    3. ›
  3. K20-K31 Diseases of esophagus, stomach and duodenum
    4. ›
  4. K22- Other diseases of esophagus
    5. ›
  5. 2020 ICD-10-CM Diagnosis Code K22.0

2020 ICD-10-CM Diagnosis Code K22.0

Achalasia of cardia

    2016 2017 2018 2019 2020 Billable/Specific Code
  • K22.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM K22.0 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of K22.0 - other international versions of ICD-10 K22.0 may differ.
Applicable To
  • Achalasia NOS
  • Cardiospasm
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as K22.0. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • congenital cardiospasm (
    ICD-10-CM Diagnosis Code Q39.5

    Congenital dilatation of esophagus

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital cardiospasm
    Q39.5
    )
The following code(s) above K22.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to K22.0:
  • K00-K95
    2020 ICD-10-CM Range K00-K95

    Diseases of the digestive system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the digestive system
  • K20-K31
    2020 ICD-10-CM Range K20-K31

    Diseases of esophagus, stomach and duodenum

    Type 2 Excludes
    Diseases of esophagus, stomach and duodenum
  • K22
    ICD-10-CM Diagnosis Code K22

    Other diseases of esophagus

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • esophageal varices (I85.-)
    Other diseases of esophagus
Approximate Synonyms
  • Achalasia
  • Achalasia of esophagus
  • Acquired achalasia of esophagus
Clinical Information
  • A finding indicating the lack of adequate relaxation of the lower esophageal sphincter resulting in difficulty swallowing food.
  • A motility disorder of the esophagus in which the lower esophageal sphincter (near the cardia) fails to relax resulting in functional obstruction of the esophagus, and dysphagia. Achalasia is characterized by a grossly contorted and dilated esophagus (megaesophagus).
  • Failure of normal relaxation of the lower esophageal sphincter associated with uncoordinated contractions of the thoracic esophagus, resulting in functional obstruction and difficulty swallowing.
  • Failure of the smooth muscle fibers of the gastrointestinal tract to relax at any one point of junction of one part with another.
ICD-10-CM K22.0 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 391 Esophagitis, gastroenteritis and miscellaneous digestive disorders with mcc
  • 392 Esophagitis, gastroenteritis and miscellaneous digestive disorders without mcc

Convert K22.0 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to K22.0:
  • Type 1 Excludes: K22.4
    ICD-10-CM Diagnosis Code K22.4

    Dyskinesia of esophagus

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Corkscrew esophagus
    • Diffuse esophageal spasm
    • Spasm of esophagus
    Type 1 Excludes

Diagnosis Index entries containing back-references to K22.0:

ICD-10-CM Codes Adjacent To K22.0
K14.8 Other diseases of tongue
K14.9 Disease of tongue, unspecified
K20 Esophagitis
K20.0 Eosinophilic esophagitis
K20.8 Other esophagitis
K20.9 Esophagitis, unspecified
K21 Gastro-esophageal reflux disease
K21.0 Gastro-esophageal reflux disease with esophagitis
K21.9 Gastro-esophageal reflux disease without esophagitis
K22 Other diseases of esophagus
K22.0 Achalasia of cardia
K22.1 Ulcer of esophagus
K22.10 …… without bleeding
K22.11 …… with bleeding
K22.2 Esophageal obstruction
K22.3 Perforation of esophagus
K22.4 Dyskinesia of esophagus
K22.5 Diverticulum of esophagus, acquired
K22.6 Gastro-esophageal laceration-hemorrhage syndrome
K22.7 Barrett's esophagus
K22.70 …… without dysplasia

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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