H59.42 — Inflammation (infection) of postprocedural bleb, stage 2
Is H59.42 billable?
Yes — H59.42 is billable for FY2027. H59.42 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. H59.42 may be submitted for encounters from October 1, 2026 through September 30, 2027.
H59.42 at a glance
| Code | H59.42 |
|---|---|
| Description | Inflammation (infection) of postprocedural bleb, stage 2 |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does H59.42 group to?
H59.42 sits in MDC 02 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 124Other Disorders of the Eye with MCC or Thrombolytic Agentmedical
- 125Other Disorders of the Eye without MCCmedical
How is H59.42 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to H59.42. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Blebitis, postprocedural › stage 2
- Bleb › inflamed, postprocedural › stage 2 (s)
Excludes1 — never code together — inherited from H59
The conditions below can never be reported together with H59.42 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from H59.4
The conditions below can never be reported together with H59.42 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- filtering (vitreous) bleb after glaucoma surgery status (Z98.83)
Excludes2 — not included here — inherited from Chapter 7
The conditions below are not part of H59.42, but a patient may have both at the same time. When documentation supports it, H59.42 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 H59.42 existed?
H59.42 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.