ICD-10-CM Diagnosis Code D12.6 - Benign neoplasm of colon, unspecified (original) (raw)

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Benign neoplasm of colon, unspecified

ICD-10-CM Code:

D12.6

ICD-10 Code for:

Benign neoplasm of colon, unspecified

Is Billable?

Yes - Valid for Submission

Chronic Condition Indicator: [1]

Not chronic

Code Navigator:

D12.6 is a billable diagnosis code used to specify a medical diagnosis of benign neoplasm of colon, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.

The following anatomical sites found in the Table of Neoplasms reference this diagnosis code given the correct histological behavior: Neoplasm, neoplastic intestine, intestinal large or Neoplasm, neoplastic intestine, intestinal large colon .

Unspecified diagnosis codes like D12.6 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

  1. Code Information
  2. Approximate Synonyms
  3. Clinical Classification
  4. Clinical Information
  5. Tabular List of Diseases and Injuries
  6. Index to Diseases and Injuries References
  8. Diagnostic Related Groups Mapping
  9. Convert to ICD-9 Code
  10. Table of Neoplasms
  11. Patient Education
  12. Other Codes Used Similar Conditions
  13. Code History

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.

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.

CCSR Code: NEO073

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.

a variant of adenomatous polyposis coli caused by mutation in the apc gene (genes, apc) on chromosome 5. it is characterized by not only the presence of multiple colonic polyposis but also extracolonic adenomatous polyps in the upper gastrointestinal tract; the eye; the skin; the skull; and the facial bones; as well as malignancy in organs other than the gi tract.

a syndrome associated with the development of multiple polyps throughout the intestine. it includes familial adenomatous polyposis , hamartomatous polyposis syndromes, and other rare polyposis syndromes.

an autosomal dominant hereditary neoplastic syndrome caused by mutations in the pms2, mlh1, msh2, or apc genes. there are two types described, type 1, characterized by the presence of glioblastoma and often associated with hereditary nonpolyposis colorectal carcinoma, and type 2, characterized by the presence of medulloblastoma and familiar adenomatous polyposis.

an autosomal dominant hereditary neoplastic syndrome caused by mutations in the pms2, mlh1, or msh2 genes. it is characterized by the presence of glioblastoma and the absence of familiar adenomatous polyposis. patients often develop hereditary nonpolyposis colorectal carcinoma.

an autosomal dominant hereditary neoplastic syndrome caused by mutations in the apc gene. it is characterized by the presence of medulloblastoma and familiar adenomatous polyposis.

References found for this diagnosis code in the External Cause of Injuries Index:

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.

ICD-9-CM: 211.3

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.

This code is referenced in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

Filter table of neoplasms:

Neoplasm, neoplastic Malignant Primary Malignant Secondary CaInSitu Benign Uncertain Behavior Unspecified Behavior
»Neoplasm, neoplastic »intestine, intestinal »large C18.9 C78.5 D01.0 D12.6 D37.4 D49.0
»Neoplasm, neoplastic »intestine, intestinal »large »colon C18.9 C78.5 D01.0 D12.6 D37.4 D49.0

Benign Tumors

Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.

Tumors are made up of extra cells. Normally, cells grow and divide to form new cells as your body needs them. When cells grow old, they die, and new cells take their place. Sometimes, this process goes wrong. New cells form when your body does not need them, and old cells do not die when they should. These extra cells can divide without stopping and may form a tumor.

Treatment often involves surgery. Benign tumors usually don't grow back.

NIH: National Cancer Institute

[Learn More in MedlinePlus]

Colonic Diseases

Your colon, also known as the large intestine, is part of your digestive system. It's a long, hollow tube at the end of your digestive tract where your body makes and stores stool. Many disorders affect the colon's ability to work properly. Some of these include:

Treatment for colonic diseases varies greatly depending on the disease and its severity. Treatment may involve diet, medicines and in some cases, surgery.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

[Learn More in MedlinePlus]

Colon Polyps

Colon polyps are common in American adults. Learn the symptoms and causes of colon polyps, and how doctors diagnose and treat them.
[Learn More in MedlinePlus]