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D31.6 ICD-10-CM Code: Benign neoplasm of unspecified site of orbit

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FY 2026 Apr update / Neoplasms (C00-D49) / Benign neoplasms, except benign neuroendocrine tumors (D10-D36)

D31.6

Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidance

Benign neoplasm of unspecified site of orbit

Benign neoplasm of unspecified site of orbit

CMS-HCC V28

0

0

RAF 0

CMS-HCC V24

0

0

RAF 0

ACA/HHS

0

0

RAF 0

ESRD/PACE

0

0

RAF 0

RXHCC

0

0

RAF 0

Code Trumping

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Code Book Path

Official
D31Benign neoplasm of eye and adnexa
D31.6Benign neoplasm of unspecified site of orbit

Inclusion Terms

Official
  • Benign neoplasm of connective tissue of orbit
  • Benign neoplasm of extraocular muscle
  • Benign neoplasm of peripheral nerves of orbit
  • Benign neoplasm of retrobulbar tissue
  • Benign neoplasm of retro-ocular tissue

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for D31.6 in this effective period.

Related Child Codes

Official
D31.60Benign neoplasm of unspecified site of unspecified orbit
D31.61Benign neoplasm of unspecified site of right orbit
D31.62Benign neoplasm of unspecified site of left orbit

Includes

Official

ICD-10-CM does not list Includes notes for D31.6 in this effective period.

Excludes 1

Official
  • benign neoplasm of orbital bone (D16.4)

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for D31.6 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for D31.6 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for D31.6 in this effective period.

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.

Coder workflow notes

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What This Code Means

D31.6 is the ICD-10-CM diagnosis code for benign neoplasm of unspecified site of orbit. D31.6 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering benign neoplasms, except benign neuroendocrine tumors (d10-d36).

Header codes like D31.6 cannot be reported on claims directly, they organize child codes that share clinical context but the actual diagnosis must be coded to the highest level of specificity supported by the documentation. Coders should look at D31.6's child codes and select the one that matches the patient's documented presentation, since payers reject header codes submitted as the primary diagnosis. For risk adjustment workflows, header codes never contribute to a Medicare Advantage member's RAF score on their own; only billable child codes that happen to map to a payment HCC affect risk-adjusted plan payments.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for D31.6 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Excludes 1, Do NOT code together

  • benign neoplasm of orbital bone (D16.4)

Child Codes

Code Hierarchy

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