H47.642 — Disorders of visual cortex in (due to) vascular disorders, left side of brain
Is H47.642 billable?
Yes — H47.642 is billable for FY2027. H47.642 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. H47.642 may be submitted for encounters from October 1, 2026 through September 30, 2027.
H47.642 at a glance
| Code | H47.642 |
|---|---|
| Description | Disorders of visual cortex in (due to) vascular disorders, left side of brain |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does H47.642 group to?
H47.642 sits in MDC 01 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 091Other Disorders of Nervous System with MCCmedical
- 092Other Disorders of Nervous System with CCmedical
- 093Other Disorders of Nervous System without CC/MCCmedical
As a secondary diagnosis, H47.642 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is H47.642 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to H47.642. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Disorder › visual › cortex › due to › vascular disorder › left brain (of)
Excludes1 — never code together — inherited from H47.6
The conditions below can never be reported together with H47.642 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- injury to visual cortex S04.04-
Excludes2 — not included here — inherited from Chapter 7
The conditions below are not part of H47.642, but a patient may have both at the same time. When documentation supports it, H47.642 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)
Code also — inherited from H47.6
Two codes may be needed to describe the condition fully. Whether H47.642 is sequenced first depends on the reason for the encounter.
- underlying condition
How long has H47.642 existed?
H47.642 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.