2023

  1. ICD-10-CM Codes
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  2. C00-D49
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  3. D49-D49
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  4. D49-
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  5. 2023 ICD-10-CM Diagnosis Code D49.6

2023 ICD-10-CM Diagnosis Code D49.6

Neoplasm of unspecified behavior of brain

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • D49.6 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM D49.6 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of D49.6 - other international versions of ICD-10 D49.6 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as D49.6. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • neoplasm of unspecified behavior of cerebral meninges (
    ICD-10-CM Diagnosis Code D49.7

    Neoplasm of unspecified behavior of endocrine glands and other parts of nervous system

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Type 1 Excludes
    • neoplasm of unspecified behavior of peripheral, sympathetic, and parasympathetic nerves and ganglia (D49.2)
    D49.7
    )
  • neoplasm of unspecified behavior of cranial nerves (
    ICD-10-CM Diagnosis Code D49.7

    Neoplasm of unspecified behavior of endocrine glands and other parts of nervous system

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Type 1 Excludes
    • neoplasm of unspecified behavior of peripheral, sympathetic, and parasympathetic nerves and ganglia (D49.2)
    D49.7
    )
The following code(s) above D49.6 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to D49.6:
  • C00-D49
    2023 ICD-10-CM Range C00-D49

    Neoplasms

    Note
    • Functional activity
    • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
    • Morphology [Histology]
    • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
    • Primary malignant neoplasms overlapping site boundaries
    • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
    • Malignant neoplasm of ectopic tissue
    • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
    Neoplasms
  • D49
    ICD-10-CM Diagnosis Code D49

    Neoplasms of unspecified behavior

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Includes
    • 'growth' NOS
    • neoplasm NOS
    • new growth NOS
    • tumor NOS
    Note
    • 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.
    Type 1 Excludes
    • neoplasms of uncertain behavior (D37-D44, D48)
    Neoplasms of unspecified behavior
Approximate Synonyms
  • Disorder of visual cortex associated with neoplasm
  • Dysembryoplastic neuroepithelial tumor
  • Germ cell tumor of the brain
  • Neoplasm of brain
  • Neoplasm of brain, germ cell
  • Neoplasm, dysembryoplastic neuroepithelial (dnet)
  • Visual cortex disorder assoc with neoplasm
ICD-10-CM D49.6 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 054 Nervous system neoplasms with mcc
  • 055 Nervous system neoplasms without mcc

Convert D49.6 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change

Diagnosis Index entries containing back-references to D49.6:
  • Degeneration, degenerative
    • brain (cortical) (progressive) G31.9
      ICD-10-CM Diagnosis Code G31.9

      Degenerative disease of nervous system, unspecified

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

ICD-10-CM Codes Adjacent To D49.6
D49.1 Neoplasm of unspecified behavior of respiratory system
D49.2 Neoplasm of unspecified behavior of bone, soft tissue, and skin
D49.3 Neoplasm of unspecified behavior of breast
D49.4 Neoplasm of unspecified behavior of bladder
D49.5 Neoplasm of unspecified behavior of other genitourinary organs
D49.51 Neoplasm of unspecified behavior of kidney
D49.511 Neoplasm of unspecified behavior of right kidney
D49.512 Neoplasm of unspecified behavior of left kidney
D49.519 Neoplasm of unspecified behavior of unspecified kidney
D49.59 Neoplasm of unspecified behavior of other genitourinary organ
D49.6 Neoplasm of unspecified behavior of brain
D49.7 Neoplasm of unspecified behavior of endocrine glands and other parts of nervous system
D49.8 Neoplasm of unspecified behavior of other specified sites
D49.81 Neoplasm of unspecified behavior of retina and choroid
D49.89 Neoplasm of unspecified behavior of other specified sites
D49.9 Neoplasm of unspecified behavior of unspecified site
D50 Iron deficiency anemia
D50.0 Iron deficiency anemia secondary to blood loss (chronic)
D50.1 Sideropenic dysphagia
D50.8 Other iron deficiency anemias
D50.9 Iron deficiency anemia, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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