G96.191 — Perineural cyst
Is G96.191 billable?
Yes — G96.191 is billable for FY2027. G96.191 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. G96.191 may be submitted for encounters from October 1, 2026 through September 30, 2027.
G96.191 at a glance
| Code | G96.191 |
|---|---|
| Description | Perineural cyst |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does G96.191 group to?
G96.191 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
How is G96.191 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to G96.191. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Cyst › perineural (colloid) (mucous) (simple) (retention)
- Cyst › Tarlov (colloid) (mucous) (simple) (retention)
- Cyst › nerve root › cervical (colloid) (mucous) (simple) (retention)
- Cyst › nerve root › lumbar (colloid) (mucous) (simple) (retention)
- Cyst › nerve root › sacral (colloid) (mucous) (simple) (retention)
- Cyst › nerve root › thoracic (colloid) (mucous) (simple) (retention)
Inclusion terms
Alternative wording in documentation that is classified to G96.191.
- Cervical nerve root cyst
- Lumbar nerve root cyst
- Sacral nerve root cyst
- Tarlov cyst
- Thoracic nerve root cyst
Excludes2 — not included here — inherited from Chapter 6
The conditions below are not part of G96.191, but a patient may have both at the same time. When documentation supports it, G96.191 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 G96.191 existed?
G96.191 first appears in FY2021 (FY2020 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.