2025 ICD-10-CM Diagnosis Code I96
Gangrene, not elsewhere classified
- ICD-10-CM Code:
- I96
- ICD-10 Code for:
- Gangrene, not elsewhere classified
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
I96 is a billable diagnosis code used to specify a medical diagnosis of gangrene, not elsewhere classified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2024 through September 30, 2025.
Approximate Synonyms
The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.
- Acral gangrene
- Application site necrosis
- Bilateral gangrene of feet
- Bilateral gangrene of finger
- Bilateral gangrene of toe
- Colostomy necrosis
- Coumarin necrosis
- Dermatosis caused by coumarin
- Ergotism
- Flap necrosis
- Gangrene due to arterial insufficiency
- Gangrene due to peripheral vascular disease
- Gangrene of buttock
- Gangrene of colostomy
- Gangrene of finger
- Gangrene of finger of left hand
- Gangrene of finger of right hand
- Gangrene of foot
- Gangrene of hand
- Gangrene of left foot
- Gangrene of newborn
- Gangrene of perineum
- Gangrene of right foot
- Gangrene of thumb
- Gangrene of toe
- Gangrene of toe of left foot
- Gangrene of toe of right foot
- Gangrenous disorder
- Gangrenous ergotism
- Gangrenous pressure injury
- Gastrointestinal anastomotic necrosis
- Ileostomy necrosis
- Injection site necrosis
- Ischemic gangrene
- Necrosis caused by ionizing radiation
- Necrosis following injection of local anesthetic
- Necrosis of myocutaneous flap
- Necrosis of skin due to and following injection of filler
- Necrosis of skin flap
- Necrosis of stoma
- Necrosis of stoma
- Necrosis of stoma
- Necrosis of stoma
- Necrosis of subcutaneous tissue
- Non-healing surgical wound
- Partial myocutaneous flap necrosis
- Peripheral gangrene
- Progressive cutaneous gangrene
- Radionecrosis of skin
- Radionecrosis of skin
- Radionecrosis of skin due to and following diagnostic procedure
- Skin necrosis
- Skin necrosis due to heparin induced thrombocytopenia
- Surgical wound necrosis
- Total necrosis of myocutaneous flap
- Wound edge finding
- Wound edge necrosis
Clinical Classification
Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.
They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.
Gangrene
CCSR Code: CIR028
Inpatient Default: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
Clinical Information
Ergotism
poisoning caused by ingesting ergotized grain or by the misdirected or excessive use of ergot as a medicine.
Tabular List of Diseases and Injuries
The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.
Inclusion Terms
Inclusion TermsThese terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Gangrenous cellulitis
Type 1 Excludes
Type 1 ExcludesA type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- gangrene in atherosclerosis of native arteries of the extremities I70.26
- gangrene in hernia K40.1 K40.4 K41.1 K41.4 K42.1 K43.1 K44.1 K45.1 K46.1
- gangrene in other peripheral vascular diseases I73
- gangrene of certain specified sites - see Alphabetical Index
- gas gangrene A48.0
- pyoderma gangrenosum L88
Type 2 Excludes
Type 2 ExcludesA type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Acrosphacelus - I96
- - Gangrene, gangrenous (connective tissue) (dropsical) (dry) (moist) (skin) (ulcer) - See Also: Necrosis; - I96
- - abdomen (wall) - I96
- - auricle - I96
- - cutaneous, spreading - I96
- - extremity (lower) (upper) - I96
- - limb (lower) (upper) - I96
- - perineum - I96
- - spine - I96
- - spreading cutaneous - I96
- - umbilicus - I96
- - Necrosis, necrotic (ischemic) - See Also: Gangrene;
- - skin or subcutaneous tissue NEC - I96
- - Noma (gangrenous) (hospital) (infective) - A69.0
- - auricle - I96
Convert I96 to ICD-9-CM
Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.
Gangrene
ICD-9-CM: 785.4
Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.
Patient Education
Gangrene
Gangrene is the death of tissues in your body. It happens when a part of your body loses its blood supply. Gangrene can happen on the surface of the body, such as on the skin, or inside the body, in muscles or organs. Causes include:
- Serious injuries
- Problems with blood circulation, such as atherosclerosis and peripheral arterial disease
- Diabetes
Skin symptoms may include a blue or black color, pain, numbness, and sores that produce a foul-smelling discharge. If the gangrene is internal, you may run a fever and feel unwell, and the area may be swollen and painful.
Gangrene is a serious condition. It needs immediate attention. Treatment includes surgery, antibiotics, and oxygen therapy. In severe cases an amputation may be necessary.
[Learn More in MedlinePlus]
Code History
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
