ICDcodes.org
FY2027

S12.100S — Unspecified displaced fracture of second cervical vertebra, sequela

BillableUnspecified

Is S12.100S billable?

Yes, but S12.100S is an unspecified code. S12.100S is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S12.100S 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 S12.100S — the more specific alternatives are listed below.

S12.100S at a glance

CodeS12.100S
DescriptionUnspecified displaced fracture of second cervical vertebra, sequela
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027
7th character "S"sequela

What does the 7th character "S" mean in S12.100S?

In S12.100S, the 7th character S means sequela. The 7th character is required for S12.100S to be a valid, complete code.

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

Which MS-DRGs does S12.100S group to?

S12.100S sits in MDC 08 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.

  • 551Medical Back Problems with MCCmedical
  • 552Medical Back Problems without MCCmedical

How is S12.100S listed in the Alphabetic Index?

The Alphabetic Index lists these routes under S12.100, the nearest indexed parent of S12.100S. Use them to find the family, then select the specific code.

  • Fracture, traumatic › neck › cervical vertebra › second (abduction) (adduction) (separation)

Code first — inherited from S12

The underlying condition below must be sequenced before S12.100S. S12.100S describes a manifestation and cannot be the principal or first-listed diagnosis.

  • any associated cervical spinal cord injury (S14.0, S14.1-)

Use additional code — inherited from Chapter 19

Report an additional code alongside S12.100S to fully describe the condition. S12.100S 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 S12.100S, but a patient may have both at the same time. When documentation supports it, S12.100S and the excluded code may both be reported.

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

Excludes2 — not included here — inherited from S10-S19

The conditions below are not part of S12.100S, but a patient may have both at the same time. When documentation supports it, S12.100S and the excluded code may both be reported.

  • burns and corrosions (T20-T32)
  • effects of foreign body in esophagus (T18.1)
  • effects of foreign body in larynx (T17.3)
  • effects of foreign body in pharynx (T17.2)
  • effects of foreign body in trachea (T17.4)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)

How long has S12.100S existed?

S12.100S 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.