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H40.20 - Unspecified primary angle-closure glaucoma


The ICD 10 Code for Unspecified primary angle-closure glaucoma is listed as H40.20.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: H40.20
Description: Unspecified primary angle-closure glaucoma
  • One of the following 7th characters is to be assigned to code H40.20 to designate the stage of glaucoma
  • 0 - stage unspecified
  • 1 - mild stage
  • 2 - moderate stage
  • 3 - severe stage
  • 4 - indeterminate stage
Chapter Diseases of the eye and adnexa (H00-H59)
Block Glaucoma (H40-H42)
Parent H40.2 - Primary angle-closure glaucoma
ICD-10-CM Siblings (same level / similar specificity) of H40.20:
H40.21 - Acute angle-closure glaucoma
H40.22 - Chronic angle-closure glaucoma
H40.23 - Intermittent angle-closure glaucoma
H40.24 - Residual stage of angle-closure glaucoma