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ICD-10-CM Codes
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A00-B99
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A00-A09
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A07-
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2023 ICD-10-CM Diagnosis Code A07.1
2023 ICD-10-CM Diagnosis Code A07.1
Giardiasis [lambliasis]
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- A07.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM A07.1 became effective on October 1, 2022.
- This is the American ICD-10-CM version of A07.1 - other international versions of ICD-10 A07.1 may differ.
The following code(s) above
A07.1 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
A07.1:
Approximate Synonyms
Clinical Information
- An infection of the small intestine caused by the flagellated protozoan giardia lamblia. It is spread via contaminated food and water and by direct person-to-person contact.
- Infection of the small intestine caused by the flagellated protozoan giardia lamlia; spread via contaminated food and water and by direct person to person contact.
- Small bowel infection caused by a parasite named giardia lamblia
ICD-10-CM A07.1 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 371 Major gastrointestinal disorders and peritoneal infections with mcc
- 372 Major gastrointestinal disorders and peritoneal infections with cc
- 373 Major gastrointestinal disorders and peritoneal infections without cc/mcc
Convert A07.1 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
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) K52.9 - see also Enteritis
ICD-10-CM Diagnosis Code K52.9
Noninfective gastroenteritis and colitis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Colitis NOS
- Enteritis NOS
- Gastroenteritis NOS
- Ileitis NOS
- Jejunitis NOS
- Sigmoiditis NOS
Type 1 Excludes- diarrhea NOS (R19.7)
- functional diarrhea (K59.1)
- infectious gastroenteritis and colitis NOS (A09)
- neonatal diarrhea (noninfective) (P78.3)
- psychogenic diarrhea (F45.8)
- Diarrhea, diarrheal (disease) (infantile) (inflammatory) R19.7
ICD-10-CM Diagnosis Code R19.7
Diarrhea, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Type 1 Excludes- functional diarrhea (K59.1)
- neonatal diarrhea (P78.3)
- psychogenic diarrhea (F45.8)
- Giardia lamblia A07.1
- giardial A07.1
- Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical) A09
ICD-10-CM Diagnosis Code A09
Infectious gastroenteritis and colitis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Infectious colitis NOS
- Infectious enteritis NOS
- Infectious gastroenteritis NOS
Type 1 Excludes- colitis NOS (K52.9)
- diarrhea NOS (R19.7)
- enteritis NOS (K52.9)
- gastroenteritis NOS (K52.9)
- noninfective gastroenteritis and colitis, unspecified (K52.9)
- Giardia lamblia A07.1
- Lamblia A07.1
- Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) K52.9
ICD-10-CM Diagnosis Code K52.9
Noninfective gastroenteritis and colitis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Colitis NOS
- Enteritis NOS
- Gastroenteritis NOS
- Ileitis NOS
- Jejunitis NOS
- Sigmoiditis NOS
Type 1 Excludes- diarrhea NOS (R19.7)
- functional diarrhea (K59.1)
- infectious gastroenteritis and colitis NOS (A09)
- neonatal diarrhea (noninfective) (P78.3)
- psychogenic diarrhea (F45.8)
- Giardiasis A07.1
- Infection, infected, infective (opportunistic) B99.9
ICD-10-CM Diagnosis Code B99.9
Unspecified infectious disease
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- Infestation B88.9
ICD-10-CM Diagnosis Code B88.9
Infestation, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Infestation (skin) NOS
- Infestation by mites NOS
- Skin parasites NOS
- Lambliasis, lambliosis A07.1
ICD-10-CM Codes Adjacent To A07.1
A06.5 Amebic lung abscess
A06.6 Amebic brain abscess
A06.7 Cutaneous amebiasis
A06.8 Amebic infection of other sites
A06.82 Other amebic genitourinary infections
A06.89 Other amebic infections
A06.9 Amebiasis, unspecified
A07 Other protozoal intestinal diseases
A07.1
Giardiasis [lambliasis]
A07.8 Other specified protozoal intestinal diseases
A07.9 Protozoal intestinal disease, unspecified
A08 Viral and other specified intestinal infections
A08.0 Rotaviral enteritis
A08.1 Acute gastroenteropathy due to Norwalk agent and other small round viruses
A08.11 Acute gastroenteropathy due to Norwalk agent
A08.19 Acute gastroenteropathy due to other small round viruses
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.