H40.21 - Acute angle-closure glaucoma

  • Applicable to Acute angle-closure glaucoma
  • The 2025 edition of ICD10-CM H40.21 became effective on October 1, 2024.
  • This is the American ICD10-CM version of H40.21 - other international versions of ICD10 H40.21 may differ.
  • H40.21 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • H40.21 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
  • H40.21 - Acute angle-closure glaucoma
    • H40.21 - Acute angle-closure glaucoma
    • H40.211 - Acute angle-closure glaucoma, right eye
    • H40.212 - Acute angle-closure glaucoma, left eye
    • H40.213 - Acute angle-closure glaucoma, bilateral
    • H40.219 - Acute angle-closure glaucoma, unspecified eye

 Inclusion Term

  • Acute angle-closure glaucoma attack
  • Acute angle-closure glaucoma crisis

The following codes above H40.21 contain annotation back-references that may be applicable to H40.21:

Chapter: H00-H59 Diseases of the eye and adnexa

Section: H40-H42 Glaucoma

Category: H40 Glaucoma

acute icd 10
 
glaucoma icd 10
 
Non-Billable/Non-Specific Code

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