S02.91XG — Unspecified fracture of skull, subsequent encounter for fracture with delayed healing

BillableUnspecified

Is S02.91XG billable?

Yes, but S02.91XG is an unspecified code. S02.91XG is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S02.91XG is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting S02.91XG — the more specific alternatives are listed below.

More specific alternatives

S02.91XG at a glance

Code	S02.91XG
Description	Unspecified fracture of skull, subsequent encounter for fracture with delayed healing
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027
7th character "G"	subsequent encounter for fracture with delayed healing

What does the 7th character "G" mean in S02.91XG?

In S02.91XG, the 7th character G means subsequent encounter for fracture with delayed healing. The 7th character is required for S02.91XG to be a valid, complete code.

Same condition, different episode of care — switch the 7th character:

Which MS-DRGs does S02.91XG group to?

S02.91XG sits in MDC 08 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.

559Aftercare, Musculoskeletal System and Connective Tissue with MCCmedical
560Aftercare, Musculoskeletal System and Connective Tissue with CCmedical
561Aftercare, Musculoskeletal System and Connective Tissue without CC/MCCmedical

How is S02.91XG listed in the Alphabetic Index?

The Alphabetic Index lists these routes under S02.91, the nearest indexed parent of S02.91XG. Use them to find the family, then select the specific code.

Fracture, traumatic › skull (abduction) (adduction) (separation)

Use additional code — inherited from Chapter 19

Report an additional code alongside S02.91XG to fully describe the condition. S02.91XG is sequenced first.

code to identify any retained foreign body, if applicable (Z18.-)

Excludes2 — not included here — inherited from Chapter 19

The conditions below are not part of S02.91XG, but a patient may have both at the same time. When documentation supports it, S02.91XG and the excluded code may both be reported.

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Excludes2 — not included here — inherited from S00-S09

The conditions below are not part of S02.91XG, but a patient may have both at the same time. When documentation supports it, S02.91XG and the excluded code may both be reported.

burns and corrosions (T20-T32)
effects of foreign body in ear (T16)
effects of foreign body in larynx (T17.3)
effects of foreign body in mouth NOS (T18.0)
effects of foreign body in nose (T17.0-T17.1)
effects of foreign body in pharynx (T17.2)
effects of foreign body on external eye (T15.-)
frostbite (T33-T34)
insect bite or sting, venomous (T63.4)

Code also — inherited from S00-S09

Two codes may be needed to describe the condition fully. Whether S02.91XG is sequenced first depends on the reason for the encounter.

for any associated infection

Code also — inherited from S02

Two codes may be needed to describe the condition fully. Whether S02.91XG is sequenced first depends on the reason for the encounter.

any associated intracranial injury (S06.-)

How long has S02.91XG existed?

S02.91XG 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.