D21.9 - Benign neoplasm of connective and other soft tissue, unspecified

Version 2023
ICD-10:D21.9
Short Description:Benign neoplasm of connective and other soft tissue, unsp
Long Description:Benign neoplasm of connective and other soft tissue, unspecified
Status: Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Neoplasms (C00–D48)
    • Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
      • Other benign neoplasms of connective and other soft tissue (D21)

D21.9 is a billable ICD-10 code used to specify a medical diagnosis of benign neoplasm of connective and other soft tissue, unspecified. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.

The following anatomical sites found in the Table of Neoplasms reference this diagnosis code given the correct histological behavior: Neoplasm, neoplastic adipose tissue [See Also: Neoplasm, connective tissue] ; Neoplasm, neoplastic aponeurosis ; Neoplasm, neoplastic connective tissue NEC ; Neoplasm, neoplastic connective tissue NEC extremity ; Neoplasm, neoplastic connective tissue NEC limb NEC ; Neoplasm, neoplastic lymph, lymphatic channel NEC ; Neoplasm, neoplastic lymph, lymphatic channel NEC vessel [See Also: Neoplasm, connective tissue] ; etc

Unspecified diagnosis codes like D21.9 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.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Clinical Information

Index to Diseases and Injuries References

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for this diagnosis code are found in the injuries and diseases index:

Convert to ICD-9 Code

Source ICD-10 CodeTarget ICD-9 Code
D21.9215.9 - Ben neo soft tissue NOS
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Table of Neoplasms

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.

Neoplasm, neoplastic Malignant
Primary
Malignant
Secondary
CaInSitu Benign Uncertain
Behavior
Unspecified
Behavior
»Neoplasm, neoplastic
  »adipose tissue [See Also: Neoplasm, connective tissue]
C49.4C79.89D21.9D48.1D49.2
»Neoplasm, neoplastic
  »aponeurosis
C49.9C79.89D21.9D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
C49.9C79.89D21.9D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »extremity
C49.9C79.89D21.9D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »limb NEC
C49.9C79.89D21.9D48.1D49.2
»Neoplasm, neoplastic
  »lymph, lymphatic channel NEC
C49.9C79.89D21.9D48.1D49.2
»Neoplasm, neoplastic
  »lymph, lymphatic channel NEC
    »vessel [See Also: Neoplasm, connective tissue]
C49.9C79.89D21.9D48.1D49.2

Patient Education


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 tumor.

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

NIH: National Cancer Institute


[Learn More in MedlinePlus]

Code History