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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 A07.9
2023 ICD-10-CM Diagnosis Code A07.9
Protozoal intestinal disease, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- A07.9 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 A07.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of A07.9 - other international versions of ICD-10 A07.9 may differ.
Applicable To- Flagellate diarrhea
- Protozoal colitis
- Protozoal diarrhea
- Protozoal dysentery
The following code(s) above
A07.9 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
A07.9:
- Protozoal intestinal disease
- Protozoan intestinal disease
ICD-10-CM A07.9 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 A07.9 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)
- Disease, diseased - see also Syndrome
- intestine K63.9
ICD-10-CM Diagnosis Code K63.9
Disease of intestine, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- protozoal B64
ICD-10-CM Diagnosis Code B64
Unspecified protozoal disease
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- intestine, intestinal A07.9
- 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)
- 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)
- 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
- protozoal NEC B64
ICD-10-CM Diagnosis Code B64
Unspecified protozoal disease
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- flagellate, intestinal A07.9
- 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
- protozoal NEC B64
ICD-10-CM Diagnosis Code B64
Unspecified protozoal disease
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
ICD-10-CM Codes Adjacent To A07.9
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
A08.2 Adenoviral enteritis
A08.3 Other viral enteritis
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
