A04.7 is a Non-billable and Non-Specific ICD-10-CM code.
A04.7 is not used for reimbursement, as more specific and detailed codes are available for precise documentation and billing.
This guideline will provide more specific codes, official coding guidelines, and historical background of A04.7.
What is the ICD-10-CM Diagnosis Code for Enterocolitis due to Clostridium difficile
The ICD-10-CM Code for Enterocolitis due to Clostridium difficile is A04.7.
Enterocolitis is characterized by inflammation of the small intestine (enteritis) and colon (colitis).
Clostridium difficile is a bacterium that causes colon and diarrhea.
Enterocolitis due to Clostridium difficile is an inflammation of the colon caused by an overgrowth of the C. difficile bacteria.
It’s one of the most common healthcare-associated infections in the United States. Antibiotics usually trigger the condition.
Proper documentation using A04.7 ensures patients receive appropriate care and enables accurate healthcare reimbursement.
Synonyms
- C difficile diarrhea
- Clostridium difficile colitis
- Clostridium difficile colitis infection
- Clostridium difficile diarrhea
- Pseudomembranous colitis
- Pseudomembranous enterocolitis
History Background of ICD-10-CM Diagnosis Code A04.7
The ICD-9-CM system, first introduced in 1979, provided the initial framework for coding diseases and health-related conditions in the United States.
The ICD-9-CM Diagnosis code for Enterocolitis due to Clostridium difficile is 008.45. This coding remained consistent from 1979 to 2015.
While the ICD-9-CM system offered a basic approach to disease classification, modern healthcare needs more detail and specificity.
To address this, the ICD-10-CM system was launched in 2015, introducing a more comprehensive and accurate coding structure.
The transition from ICD-9-CM to ICD-10-CM significantly improved the ability to document and analyze conditions such as Enterocolitis due to Clostridium difficile.
The 2025 edition of more specific ICD-10-CM codes of A04.7 became effective on October 1, 2024.
| Year | Code | Description |
| 2016 (effective 10/1/2015) | A04.7 | New Code |
| 2017 (effective 10/1/2016) | A04.7 | No Change |
| 2018 (effective 10/1/2017) | No Code | Deleted Code |
| 2018 (effective 10/1/2017) | A04.71 A04.72 | New Codes |
| 2019 (effective 10/1/2018) | A04.71 A04.72 | No Change |
| 2020 (effective 10/1/2019) | A04.71 A04.72 | No Change |
| 2021 (effective 10/1/2020) | A04.71 A04.72 | No Change |
| 2022 (effective 10/1/2021) | A04.71 A04.72 | No Change |
| 2023 (effective 10/1/2022) | A04.71 A04.72 | No Change |
| 2024 (effective 10/1/2023) | A04.71 A04.72 | No Change |
| 2025 (effective 10/1/2024) | A04.71 A04.72 | No Change |
The original code A04.7: Enterocolitis due to Clostridium difficile was deleted effective October 1, 2017.
Two new codes were introduced on the same date to replace the generic A04.7 to enhance specificity.
A04.71: Enterocolitis due to Clostridium difficile, recurrent
A04.72: Enterocolitis due to Clostridium difficile, not specified as recurrent
The new codes allowed more precise documentation and improved coding accuracy for Clostridium difficile infections.
Thus, A04.71 and A04.72 became the replacements for A04.7 starting in 2018.
Symptoms of Enterocolitis due to Clostridium difficile
- Watery or bloody diarrhea, sometimes up to 15 times a day
- Abdominal pain or cramping, which can be severe
- Fever
- Loss of appetite
- Nausea
- Dehydration, which can cause headaches, dry mouth, and infrequent urination
- Rapid heart rate or heart palpitations
- Weight loss
These symptoms vary in severity, and in some cases, complications like toxic megacolon or sepsis may occur if the infection is untreated. Prompt medical attention is crucial.
How Enterocolitis due to Clostridium difficile is Caused
- Use of antibiotics that disrupt the normal gut flora
- Hospitalization or long-term care facility stays
- Age and a weakened immune system increase susceptibility
- Ingestion of C. difficile spores from contaminated surfaces or food.
Other ICD-10-CM Diagnosis Codes in A04
ICD-10-CM code A04 | Other bacterial intestinal infections has following sub categories including A04.7 :
- A04 Other bacterial intestinal infections
- A04.0 Enteropathogenic Escherichia coli infection
- A04.1 Enterotoxigenic Escherichia coli infection
- A04.2 Enteroinvasive Escherichia coli infection
- A04.3 Enterohemorrhagic Escherichia coli infection
- A04.4 Other intestinal Escherichia coli infections
- A04.5 Campylobacter enteritis
- A04.6 Enteritis due to Yersinia enterocolitica
- A04.7 Enterocolitis due to Clostridium difficile
- A04.71 recurrent
- A04.72 not specified as recurrent
- A04.8 Other specified bacterial intestinal infections
- A04.9 Bacterial intestinal infection, unspecified
Final Thoughts
Accurate coding of Enterocolitis due to Clostridium difficile is essential for precise documentation, effective treatment, and appropriate reimbursement.
The introduction of specific codes like A04.71 and A04.72 enhances clarity and ensures better patient care.
By understanding its causes, symptoms, and history, healthcare providers can optimize diagnosis and management for improved outcomes.
