D43 ICD-10-CM Code: Neoplasm of uncertain behavior of brain and central nervous system
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
D43Neoplasm of uncertain behavior of brain and central nervous system
ICD-10-CM diagnosis code · United States clinical modification
Where D43 sits
- 1
Chapter 2
Neoplasms (C00-D49)
- 2
Section
Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48)
- 3
Category D43
Neoplasm of uncertain behavior of brain and central nervous system
- 4
Code D43
Neoplasm of uncertain behavior of brain and central nervous system
Codes under D43
D43 is a non-billable category. Choose the child code that best matches the documented diagnosis.
D43.0Neoplasm of uncertain behavior of brain, supratentorialD43.1Neoplasm of uncertain behavior of brain, infratentorialD43.2Neoplasm of uncertain behavior of brain, unspecifiedD43.3Neoplasm of uncertain behavior of cranial nervesD43.4Neoplasm of uncertain behavior of spinal cordD43.8Neoplasm of uncertain behavior of other specified parts of central nervous systemD43.9Neoplasm of uncertain behavior of central nervous system, unspecifiedNotes for this code
Inclusion terms
No inclusion terms are listed for D43.
Code first
No “code first” instruction is listed for D43.
Use additional code
No “use additional code” instruction is listed for D43.
Excludes1
Conditions that should not be reported together with this code.
- neoplasm of uncertain behavior of peripheral nerves and autonomic nervous system (D48.2)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for D43.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code D43 mean?
D43 is the FY 2027 U.S. ICD-10-CM code for “Neoplasm of uncertain behavior of brain and central nervous system.”
Is D43 a billable or specific ICD-10-CM code?
No. D43 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is D43 located in ICD-10-CM?
D43 is listed in Chapter 2, Neoplasms (C00-D49), within Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48) (D37–D48), under category D43, Neoplasm of uncertain behavior of brain and central nervous system.
What coding notes are listed for D43?
No inclusion terms are listed for D43 in this reference record. No code-first instruction is listed. Excludes1 notes: neoplasm of uncertain behavior of peripheral nerves and autonomic nervous system (D48.2). No Excludes2 note is listed.