G53 — Cranial nerve disorders in diseases classified elsewhere
Is G53 billable?
Yes — G53 is billable for FY2027. G53 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. G53 may be submitted for encounters from October 1, 2026 through September 30, 2027.
G53 at a glance
| Code | G53 |
|---|---|
| Description | Cranial nerve disorders in diseases classified elsewhere |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to G53?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name G53 directly.
This code describes a manifestation of an underlying disease. The underlying condition must be sequenced before it, so it can never be the principal or first-listed diagnosis.
Which MS-DRGs does G53 group to?
G53 sits in MDC 01 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.
- 073Cranial and Peripheral Nerve Disorders with MCCmedical
- 074Cranial and Peripheral Nerve Disorders without MCCmedical
How is G53 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to G53. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Palsy › cranial nerve › multiple › in › infectious disease
- Palsy › cranial nerve › multiple › in › neoplastic disease
- Palsy › cranial nerve › multiple › in › parasitic disease
Excludes1 — never code together
The conditions below can never be reported together with G53 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Code first
The underlying condition below must be sequenced before G53. G53 describes a manifestation and cannot be the principal or first-listed diagnosis.
- underlying disease, such as:
- neoplasm (C00-D49)
Excludes1 — never code together — inherited from G50-G59
The conditions below can never be reported together with G53 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 6
The conditions below are not part of G53, but a patient may have both at the same time. When documentation supports it, G53 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)
- endocrine, nutritional and metabolic diseases (E00-E88)
- 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)
How long has G53 existed?
G53 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.