2024 ICD-10-CM Diagnosis Code C49.5

Malignant neoplasm of connective and soft tissue of pelvis

ICD-10-CM Code:
C49.5
ICD-10 Code for:
Malignant neoplasm of connective and soft tissue of pelvis
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Neoplasms
    (C00–D49)
    • Malignant neoplasms of mesothelial and soft tissue
      (C45-C49)
      • Malignant neoplasm of other connective and soft tissue
        (C49)

C49.5 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of connective and soft tissue of pelvis. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

The following anatomical sites found in the Table of Neoplasms reference this diagnosis code given the correct histological behavior: Neoplasm, neoplastic coccygeal ; Neoplasm, neoplastic coccygeal body or glomus ; Neoplasm, neoplastic connective tissue NEC buttock ; Neoplasm, neoplastic connective tissue NEC extrarectal ; Neoplasm, neoplastic connective tissue NEC gluteal region ; Neoplasm, neoplastic connective tissue NEC groin ; Neoplasm, neoplastic connective tissue NEC iliopsoas muscle ; etc

Approximate Synonyms

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

  • Malignant neoplasm of soft tissue of buttock
  • Malignant tumor of soft tissue of pelvis
  • Neoplasm of blood vessel of buttock
  • Neoplasm of blood vessel of inguinal region
  • Neoplasm of blood vessel of pelvis
  • Neoplasm of blood vessel of perineum
  • Neoplasm of coccygeal body
  • Neoplasm of muscle of buttock
  • Neoplasm of muscle of hip
  • Neoplasm of muscle of inguinal region
  • Neoplasm of muscle of pelvis
  • Neoplasm of muscle of pelvis
  • Neoplasm of muscle of perineum
  • Neoplasm of soft tissues of inguinal region
  • Neoplasm of soft tissues of inguinal region
  • Primary angiosarcoma of pelvis
  • Primary angiosarcoma of trunk
  • Primary leiomyosarcoma of buttock
  • Primary leiomyosarcoma of inguinal region
  • Primary leiomyosarcoma of pelvis
  • Primary leiomyosarcoma of perineum
  • Primary liposarcoma of soft tissue of buttock
  • Primary liposarcoma of soft tissue of inguinal region
  • Primary liposarcoma of soft tissue of limb
  • Primary liposarcoma of soft tissue of pelvis
  • Primary liposarcoma of soft tissue of perineum
  • Primary liposarcoma of soft tissue of trunk
  • Primary liposarcoma of soft tissue of trunk
  • Primary liposarcoma of soft tissue of trunk
  • Primary malignant neoplasm of blood vessel of buttock
  • Primary malignant neoplasm of blood vessel of inguinal region
  • Primary malignant neoplasm of blood vessel of lower limb
  • Primary malignant neoplasm of blood vessel of pelvis
  • Primary malignant neoplasm of blood vessel of perineum
  • Primary malignant neoplasm of blood vessel of trunk
  • Primary malignant neoplasm of blood vessel of trunk
  • Primary malignant neoplasm of blood vessel of trunk
  • Primary malignant neoplasm of blood vessel of trunk
  • Primary malignant neoplasm of coccygeal body
  • Primary malignant neoplasm of inguinal region
  • Primary malignant neoplasm of inguinal region
  • Primary malignant neoplasm of inguinal region
  • Primary malignant neoplasm of inguinal region
  • Primary malignant neoplasm of inguinal region
  • Primary malignant neoplasm of inguinal region
  • Primary malignant neoplasm of inguinal region
  • Primary malignant neoplasm of muscle of buttock
  • Primary malignant neoplasm of muscle of hip
  • Primary malignant neoplasm of muscle of inguinal region
  • Primary malignant neoplasm of muscle of lower limb
  • Primary malignant neoplasm of muscle of pelvis
  • Primary malignant neoplasm of muscle of perineum
  • Primary malignant neoplasm of muscle of trunk
  • Primary malignant neoplasm of muscle of trunk
  • Primary malignant neoplasm of muscle of trunk
  • Primary malignant neoplasm of paraganglion
  • Primary malignant neoplasm of skin of perineum
  • Primary malignant neoplasm of soft tissues of buttock
  • Primary malignant neoplasm of soft tissues of inguinal region
  • Primary malignant neoplasm of soft tissues of pelvis
  • Primary malignant neoplasm of soft tissues of perineum
  • Primary rhabdomyosarcoma of buttock
  • Primary rhabdomyosarcoma of inguinal region
  • Primary rhabdomyosarcoma of pelvis
  • Primary rhabdomyosarcoma of perineum
  • Primary sarcoma of buttock
  • Primary sarcoma of inguinal region
  • Primary sarcoma of perineum
  • Sarcoma of pelvis

Clinical Classification

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 Terms
These 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.
  • Malignant neoplasm of buttock
  • Malignant neoplasm of groin
  • Malignant neoplasm of perineum

Convert C49.5 to ICD-9-CM

  • ICD-9-CM Code: 171.6 - Mal neo soft tis pelvis
    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
  »coccygeal
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »coccygeal
    »body or glomus
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »buttock
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »extrarectal
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »gluteal region
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »groin
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »iliopsoas muscle
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »inguinal (canal) (region)
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »ischiorectal fossa
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »nates
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »pararectal
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »para-urethral
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »paravaginal
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »pelvis (floor)
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »perineum
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »perirectal (tissue)
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »periurethral (tissue)
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »presacral
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »rectovaginal septum or wall
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »rectovesical
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »sacrococcygeal region
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »connective tissue NEC
    »vesicorectal
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »glomus
C49.5C79.89 D21.5D48.1D49.2
»Neoplasm, neoplastic
  »glomus
    »coccygeal
C49.5C79.89 D21.5D48.1D49.2

Patient Education


Cancer

Cancer begins in your cells, which are the building blocks of your body. Normally, your body forms new cells as you need them, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can form a mass called a tumor. Tumors can be benign or malignant. Benign tumors aren't cancer while malignant ones are. Cells from malignant tumors can invade nearby tissues. They can also break away and spread to other parts of the body.

Cancer is not just one disease but many diseases. There are more than 100 different types of cancer. Most cancers are named for where they start. For example, lung cancer starts in the lung, and breast cancer starts in the breast. The spread of cancer from one part of the body to another is called metastasis. Symptoms and treatment depend on the cancer type and how advanced it is. Most treatment plans may include surgery, radiation and/or chemotherapy. Some may involve hormone therapy, immunotherapy or other types of biologic therapy, or stem cell transplantation.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

Connective Tissue Disorders

Your connective tissue supports many different parts of your body, such as your skin, eyes, and heart. It is like a "cellular glue" that gives your body parts their shape and helps keep them strong. It also helps some of your tissues do their work. It is made of many kinds of proteins. Cartilage and fat are types of connective tissue.

Over 200 disorders that impact connective tissue. There are different types:

  • Genetic disorders, such as Ehlers-Danlos syndrome, Marfan syndrome, and osteogenesis imperfecta
  • Autoimmune disorders, such as lupus and scleroderma
  • Cancers, like some types of soft tissue sarcoma

Each disorder has its own symptoms and needs different treatment.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[Learn More in MedlinePlus]

Soft Tissue Sarcoma-Patient Version

Learn about soft tissue sarcoma risk factors, symptoms, tests to diagnose, factors affecting prognosis, staging, and treatment.
[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] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.