S02.42 – Fracture of alveolus of maxilla
ICD-10-CM 2027 diagnosis code · Injuries to the head
- Code
S02.42(claims format:S0242)- Description
- Fracture of alveolus of maxilla
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
- Block
- S00-S09 Injuries to the head
- Parent codes
- S02 › S02.4
Billable codes under S02.42
S02.42 is a header code and cannot be used on claims. Choose the most specific code:
- S02.42XA – Fracture of alveolus of maxilla, initial encounter for closed fractureBillable
- S02.42XB – Fracture of alveolus of maxilla, initial encounter for open fractureBillable
- S02.42XD – Fracture of alveolus of maxilla, subsequent encounter for fracture with routine healingBillable
- S02.42XG – Fracture of alveolus of maxilla, subsequent encounter for fracture with delayed healingBillable
- S02.42XK – Fracture of alveolus of maxilla, subsequent encounter for fracture with nonunionBillable
- S02.42XS – Fracture of alveolus of maxilla, sequelaBillable
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).
| Character | Meaning |
|---|---|
A | initial encounter for closed fracture |
B | initial encounter for open fracture |
D | subsequent encounter for fracture with routine healing |
G | subsequent encounter for fracture with delayed healing |
K | subsequent encounter for fracture with nonunion |
S | sequela |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
S02 – Fracture of skull and facial bones
- any associated intracranial injury (S06.-)
- A fracture not indicated as open or closed should be coded to closed
- The appropriate 7th character is to be added to each code from category S02
S02.4 – Fracture of malar, maxillary and zygoma bones
- Fracture of superior maxilla
- Fracture of upper jaw (bone)
- Fracture of zygomatic process of temporal bone
Block S00-S09
- injuries of ear
- injuries of eye
- injuries of face [any part]
- injuries of gum
- injuries of jaw
- injuries of oral cavity
- injuries of palate
- injuries of periocular area
- injuries of scalp
- injuries of temporomandibular joint area
- injuries of tongue
- injuries of tooth
- 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)
- for any associated infection
Index terms for S02.42
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in S02.4
Frequently asked questions
What is ICD-10 code S02.42?
S02.42 is the ICD-10-CM code for fracture of alveolus of maxilla, in the block S00-S09 (Injuries to the head).
Is S02.42 a billable code?
No. S02.42 is a header code with more specific child codes; report one of the billable codes listed above.
What category does S02.42 belong to?
It belongs to category S02 – Fracture of skull and facial bones.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.