ICD-10-CM 7th Character Values · FY 2027 5 Values

7th Character Values: Glaucoma Stage ICD-10-CM

Records the stage of glaucoma: unspecified, mild, moderate, severe or indeterminate. In FY 2027 11 categories use this set, covering 190 complete codes.

✓ From the official FY 2027 ICD-10-CM Tabular ListDefinitions follow the Official Guidelines, Section I.A

Values

What Each Value Means 5 values

Character	Meaning
0	stage unspecified
1	mild stage
2	moderate stage
3	severe stage
4	indeterminate stage

ICD-10-CM

Categories That Use These Values 11 categories

Category	Title	Chapter	Codes
H40.10	Unspecified open-angle glaucoma	Ch. 7	5
H40.11	Primary open-angle glaucoma	Ch. 7	20
H40.12	Low-tension glaucoma	Ch. 7	20
H40.13	Pigmentary glaucoma	Ch. 7	20
H40.14	Capsular glaucoma with pseudoexfoliation of lens	Ch. 7	20
H40.20	Unspecified primary angle-closure glaucoma	Ch. 7	5
H40.22	Chronic angle-closure glaucoma	Ch. 7	20
H40.3	Glaucoma secondary to eye trauma	Ch. 7	20
H40.4	Glaucoma secondary to eye inflammation	Ch. 7	20
H40.5	Glaucoma secondary to other eye disorders	Ch. 7	20
H40.6	Glaucoma secondary to drugs	Ch. 7	20

Every code under these categories takes one of the values above in the seventh position, with X placeholders when the code is shorter than six characters. For example, a code under H40.10 ends in 0 for stage unspecified. “Codes” counts the complete 7-character codes.

Other 7th Character Value Sets

Encounter: Initial, Subsequent, Sequela Eye Laterality Closed Fracture Encounter Fetus Identification Pathological Fracture Encounter Open or Closed Fracture Encounter Coma Scale Timing Skull, Spine and Pelvis Fracture Encounter Open Fracture Type Encounter Retinal Vein Occlusion Status Vertebral Fracture Encounter Dry Macular Degeneration Stage Wet Macular Degeneration Stage Chronic Gout Tophus

Questions About These 7th Characters

What do the 7th characters 0, 1, 2, 3, 4 mean?

In this set: 0 (stage unspecified); 1 (mild stage); 2 (moderate stage); 3 (severe stage); 4 (indeterminate stage).

Which ICD-10-CM categories use the Glaucoma Stage 7th characters?

11 categories and subcategories use them in FY 2027, covering 190 codes. The table above lists each one with its chapter and code count.

What if the code is shorter than six characters?

Fill the empty positions with the placeholder X so the 7th character is in the seventh position. A code that requires a 7th character is invalid without it (Sections I.A.4 and I.A.5).

Related References

ICD-10-CM Official Guidelines ICD-10-CM Code Lookup ICD-10-CM Codes List Code Lists by Tag

Source: FY 2027 ICD-10-CM Tabular List (CMS and NCHS) and the ICD-10-CM Official Guidelines for Coding and Reporting FY 2027, Section I.A. ICD List is not affiliated with CMS or NCHS.