S52.599

Other fractures of lower end of unspecified radius

Header / non-billable

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S52.599 needs more characters to be billable. Pick the specific code below.

S52.599AOther fractures of lower end of unspecified radius, initial encounter for closed fractureBillable
S52.599BOther fractures of lower end of unspecified radius, initial encounter for open fracture type I or IIBillable
S52.599COther fractures of lower end of unspecified radius, initial encounter for open fracture type IIIA, IIIB, or IIICBillable
S52.599DOther fractures of lower end of unspecified radius, subsequent encounter for closed fracture with routine healingBillable
S52.599EOther fractures of lower end of unspecified radius, subsequent encounter for open fracture type I or II with routine healingBillable
S52.599FOther fractures of lower end of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingBillable
S52.599GOther fractures of lower end of unspecified radius, subsequent encounter for closed fracture with delayed healingBillable
S52.599HOther fractures of lower end of unspecified radius, subsequent encounter for open fracture type I or II with delayed healingBillable
S52.599JOther fractures of lower end of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingBillable
S52.599KOther fractures of lower end of unspecified radius, subsequent encounter for closed fracture with nonunionBillable
S52.599MOther fractures of lower end of unspecified radius, subsequent encounter for open fracture type I or II with nonunionBillable
S52.599NOther fractures of lower end of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunionBillable
S52.599POther fractures of lower end of unspecified radius, subsequent encounter for closed fracture with malunionBillable
S52.599QOther fractures of lower end of unspecified radius, subsequent encounter for open fracture type I or II with malunionBillable
S52.599ROther fractures of lower end of unspecified radius, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionBillable
S52.599SOther fractures of lower end of unspecified radius, sequelaBillable

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from S52.5Fracture of lower end of radius

Excludes 2

physeal fractures of lower end of radius (S59.2-)

Synonyms

Fracture of distal end of radius

Inherited from S52Fracture of forearm

Excludes 1

traumatic amputation of forearm (S58.-)

Excludes 2

fracture at wrist and hand level (S62.-) periprosthetic fracture around internal prosthetic elbow joint (M97.4)

7th character

The appropriate 7th character is to be added to all codes from category S52

Valid 7th characters and their meanings
Character	Meaning
A	initial encounter for closed fracture
B	initial encounter for open fracture type I or II
C	initial encounter for open fracture type IIIA, IIIB, or IIIC
D	subsequent encounter for closed fracture with routine healing
E	subsequent encounter for open fracture type I or II with routine healing
F	subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
G	subsequent encounter for closed fracture with delayed healing
H	subsequent encounter for open fracture type I or II with delayed healing
J	subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
K	subsequent encounter for closed fracture with nonunion
M	subsequent encounter for open fracture type I or II with nonunion
N	subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
P	subsequent encounter for closed fracture with malunion
Q	subsequent encounter for open fracture type I or II with malunion
R	subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
S	sequela

Note

A fracture not indicated as displaced or nondisplaced should be coded to displaced A fracture not indicated as open or closed should be coded to closed The open fracture designations are based on the Gustilo open fracture classification

Inherited from S50-S59Injuries to the elbow and forearm

Excludes 2

burns and corrosions (T20-T32) frostbite (T33-T34) injuries of wrist and hand (S60-S69) insect bite or sting, venomous (T63.4)

Inherited from chapter 19Injury, poisoning and certain other consequences of external causes

Excludes 2

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

Use additional

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

Note

Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes. (T07-T88) Injury, poisoning and certain other consequences of external causes (T07-T88) (T20-T32) Burns and corrosions (T20-T32) Includes: burns (thermal) from electrical heating appliances burns (thermal) from electricity burns (thermal) from flame burns (thermal) from friction burns (thermal) from hot air and hot gases burns (thermal) from hot objects burns (thermal) from lightning burns (thermal) from radiation chemical burn [corrosion] (external) (internal) scalds Excludes2: erythema [dermatitis] ab igne (L59.0) radiation-related disorders of the skin and subcutaneous tissue (L55-L59) sunburn (L55.-)

Official Guidelines for S52.599

FY 2026 ›

I.C.19Chapter-specific guidanceChapter 19: Injury, poisoning, and certain other consequences of external causes (S00-T88)

Subsections

Sections that reference S52.599

Sections whose FY 2026 text names S52.599, its S52 category, or a range containing it — the chapter guidance above is the authoritative source.