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H40.221Non-billableSave

H40.221 - Chronic angle-closure glaucoma, right eye

ICD-10-CM Chapter 7: Diseases of the eye and adnexa · H40-H42 Glaucoma (H40-H42) · Subcategory of H40.22 · FY2027

Coding Guidance

H40.221 requires a 7th character. Report the code below that matches the documentation, for example 0 for stage unspecified, 1 for mild stage, 2 for moderate stage.

7th Character

One of the following 7th characters is to be assigned to each code in subcategory H40.22 to designate the stage of glaucoma

Includes, Excludes and Coding Notes

Excludes 1 — Not Coded HereFrom H40.2

Mutually exclusive: these conditions are never reported together with this code.

  • aqueous misdirection (H40.83-)
  • malignant glaucoma (H40.83-)
Excludes 1 — Not Coded HereFrom H40

Mutually exclusive: these conditions are never reported together with this code.

  • absolute glaucoma (H44.51-)
  • congenital glaucoma (Q15.0)
  • traumatic glaucoma due to birth injury (P15.3)
Excludes 2 — Not Included HereFrom Chapter H00-H59

Not part of this code; report both codes when the patient has both conditions.

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury (trauma) of eye and orbit (S05.-)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
NotesFrom Chapter H00-H59

Instructional notes from the ICD-10-CM tabular list.

  • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition

More Specific Codes (5)

H40.2210Chronic angle-closure glaucoma, right eye, stage unspecified→H40.2211Chronic angle-closure glaucoma, right eye, mild stage→H40.2212Chronic angle-closure glaucoma, right eye, moderate stage→H40.2213Chronic angle-closure glaucoma, right eye, severe stage→H40.2214Chronic angle-closure glaucoma, right eye, indeterminate stage→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with H40.221.