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  4. D49
  5. Neoplasms of unspecified behavior (D49)

Neoplasms of unspecified behavior (D49)

    • ICD-10 Index

      • Neoplasms (C00–D48)

        • Neoplasms of unspecified behavior (D49)

            • Neoplasms of unspecified behavior (D49)
            • D49 - Neoplasms of unspecified behavior NON-BILLABLE CODE
            • D49.0 - Neoplasm of unspecified behavior of digestive system BILLABLE CODE
            • D49.1 - Neoplasm of unspecified behavior of respiratory system BILLABLE CODE
            • D49.2 - Neoplasm of unsp behavior of bone, soft tissue, and skin BILLABLE CODE
            • D49.3 - Neoplasm of unspecified behavior of breast BILLABLE CODE
            • D49.4 - Neoplasm of unspecified behavior of bladder BILLABLE CODE
            • D49.5 - Neoplasm of unsp behavior of other genitourinary organs NON-BILLABLE CODE
            • D49.51 - Neoplasm of unspecified behavior of kidney NON-BILLABLE CODE
            • D49.511 - Neoplasm of unspecified behavior of right kidney BILLABLE CODE
            • D49.512 - Neoplasm of unspecified behavior of left kidney BILLABLE CODE
            • D49.519 - Neoplasm of unspecified behavior of unspecified kidney BILLABLE CODE
            • D49.59 - Neoplasm of unspecified behavior of other GU organ BILLABLE CODE
            • D49.6 - Neoplasm of unspecified behavior of brain BILLABLE CODE
            • D49.7 - Neoplm of unsp behav of endo glands and oth prt nervous sys BILLABLE CODE
            • D49.8 - Neoplasm of unspecified behavior of other specified sites NON-BILLABLE CODE
            • D49.81 - Neoplasm of unspecified behavior of retina and choroid BILLABLE CODE
            • D49.89 - Neoplasm of unspecified behavior of other specified sites BILLABLE CODE
            • D49.9 - Neoplasm of unspecified behavior of unspecified site BILLABLE CODE

Clinical Information for Neoplasms of unspecified behavior (D49)

Thymoma - A neoplasm originating from thymic tissue, usually benign, and frequently encapsulated. Although it is occasionally invasive, metastases are extremely rare. It consists of any type of thymic epithelial cell as well as lymphocytes that are usually abundant. Malignant lymphomas that involve the thymus, e.g., lymphosarcoma, Hodgkin's disease (previously termed granulomatous thymoma), should not be regarded as thymoma. (From Stedman, 25th ed)

Paraneoplastic Cerebellar Degeneration - Cerebellar degeneration associated with a remote neoplasm. Clinical manifestations include progressive limb and GAIT ATAXIA; DYSARTHRIA; and NYSTAGMUS, PATHOLOGIC. The histologic type of the associated neoplasm is usually carcinoma or lymphoma. Pathologically the cerebellar cortex and subcortical nuclei demonstrate diffuse degenerative changes. Anti-Purkinje cell antibodies (anti-Yo) are found in the serum of approximately 50% of affected individuals. (Adams et al., Principles of Neurology, 6th ed, p686)

Instructional Notations

Includes Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

  • 'growth' NOS
  • neoplasm NOS
  • new growth NOS
  • tumor NOS

Type 1 Excludes Type 1 Excludes
A 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.

  • neoplasms of uncertain behavior D37 D44 D48

  • Category D49 classifies by site neoplasms of unspecified morphology and behavior. The term 'mass', unless otherwise stated, is not to be regarded as a neoplastic growth.