D49.7 ICD-10-CM Code: Neoplasm of unspecified behavior of endocrine glands and other parts of nervous system
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FY 2026 Apr update / Neoplasms (C00-D49) / Neoplasms of unspecified behavior (D49)
D49.7
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceNeoplasm of unspecified behavior of endocrine glands and other parts of nervous system
A tumor or growth in the endocrine glands (like thyroid, pituitary, adrenal) or other parts of the nervous system whose behavior cannot be determined.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
00
RAF 0
Code Trumping
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for D49.7 in this effective period.
Excludes 2
Official- neoplasms of uncertain behavior (D37-D44, D48)
Related Child Codes
Includes
Official- 'growth' NOS
- neoplasm NOS
- new growth NOS
- tumor NOS
Excludes 1
Official- neoplasm of unspecified behavior of peripheral, sympathetic, and parasympathetic nerves and ganglia (D49.2)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for D49.7 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for D49.7 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for D49.7 in this effective period.
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is D49.7 an HCC code?
No. D49.7 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
D49.7 is the ICD-10-CM diagnosis code for neoplasm of unspecified behavior of endocrine glands and other parts of nervous system. A tumor or growth in the endocrine glands (like thyroid, pituitary, adrenal) or other parts of the nervous system whose behavior cannot be determined. D49.7 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering neoplasms of unspecified behavior (d49).
D49.7 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Specify the exact endocrine gland or nervous system location when possible for more precise coding.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for D49.7 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Specify the exact endocrine gland or nervous system location when possible for more precise coding
- •This is a placeholder code; seek clarification from pathology if behavior can be determined
Excludes 1, Do NOT code together
- neoplasm of unspecified behavior of peripheral, sympathetic, and parasympathetic nerves and ganglia (D49.2)