H40.1233 — Low-tension glaucoma, bilateral, severe stage
Is H40.1233 billable?
Yes — H40.1233 is billable for FY2027. H40.1233 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. H40.1233 may be submitted for encounters from October 1, 2026 through September 30, 2027.
H40.1233 at a glance
| Code | H40.1233 |
|---|---|
| Description | Low-tension glaucoma, bilateral, severe stage |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "3" | severe stage |
What does the 7th character "3" mean in H40.1233?
In H40.1233, the 7th character 3 means severe stage. The 7th character is required for H40.1233 to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
What Medicare edits apply to H40.1233?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name H40.1233 directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does H40.1233 group to?
H40.1233 sits in MDC 02 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 123Neurological Eye Disordersmedical
How is H40.1233 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under H40.12, the nearest indexed parent of H40.1233. Use them to find the family, then select the specific code.
- Glaucoma › open angle › primary › low-tension
Excludes1 — never code together — inherited from H40
The conditions below can never be reported together with H40.1233 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 7
The conditions below are not part of H40.1233, but a patient may have both at the same time. When documentation supports it, H40.1233 and the excluded code may both be reported.
- 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)
How long has H40.1233 existed?
H40.1233 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.