ICD-10-CM 2027
ICD-10 code for dark area retina
From the official ICD-10-CM alphabetic index entry “Retina, retinal › dark area”. Page updated September 29, 2026.
About coding dark area retina
The ICD-10-CM code for dark area retina is D49.81 (Neoplasm of unspecified behavior of retina and choroid).
Within D49.8 (neoplasm of unspecified behavior of other specified sites), D49.81 is specifically for neoplasm of unspecified behavior of retina and choroid. Related codes cover other specified sites (D49.89).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 826 (Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCC, relative weight 4.7581), DRG 827 (Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CC, relative weight 2.3896), DRG 828 (Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCC, relative weight 1.6955), DRG 829 (Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Other Procedures with CC/MCC, relative weight 3.1281), DRG 830 (Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Other Procedures without CC/MCC, relative weight 1.4859), DRG 843 (Other Myeloproliferative Disorders or Poorly Differentiated Neoplastic Diagnoses with MCC, relative weight 1.9453) and 2 more, in MDC 17 (Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about dark area retina ICD-10 codes
What is the ICD-10 code for dark area retina?
- D49.81 — Neoplasm of unspecified behavior of retina and choroid.
Is D49.81 billable?
- Yes. D49.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D49.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D49.81 as a principal diagnosis.
Is D49.81 a CC or MCC?
- No. D49.81 is neither a CC nor an MCC under MS-DRG v44.0.