S93.122A vs S93.122D

S93.122A (Dislocation of metatarsophalangeal joint of left great toe, initial encounter) compared with S93.122D (Dislocation of metatarsophalangeal joint of left great toe, subsequent encounter), from the official CMS tabular data. S93.122A and S93.122D code the same injury at a different phase of treatment.

Relationship

Review

Encounter relationship

S93.122A

Initial encounter

Dislocation of metatarsophalangeal joint of left great toe, initial encounter

↔

S93.122D

Subsequent encounter

Dislocation of metatarsophalangeal joint of left great toe, subsequent encounter

Same underlying diagnosis, different encounter phase.

The 7th character records the phase of care for the encounter being coded, so a single encounter takes one of these characters, not several. Review whether both phases belong on the same episode of care.

Source: ICD-10-CM Official Guidelines, Section I.C.19.a

Can these codes be reported together?

Same injury, other encounter phase. S93.122A and S93.122D code the same injury at a different phase of treatment, set by the 7th character.

The 7th character records the type of care given at the encounter being coded (ICD-10-CM Official Guidelines, Section I.C.19.a), so one encounter takes one of these, not both.

Side by side

	S93.122ADislocation of metatarsophalangeal joint of left great toe, initial encounter	S93.122DDislocation of metatarsophalangeal joint of left great toe, subsequent encounter
Billing status	Billable	Billable
Classification	S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)	S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
Definition	Dislocation of metatarsophalangeal joint of left great toe, initial encounter is a billable ICD-10-CM diagnosis code (S93.122A).	Dislocation of metatarsophalangeal joint of left great toe, subsequent encounter is a billable ICD-10-CM diagnosis code (S93.122D).
7th character	The appropriate 7th character is to be added to each code from category S93	The appropriate 7th character is to be added to each code from category S93
Includes	avulsion of joint or ligament of ankle, foot and toe laceration of cartilage, joint or ligament of ankle, foot and toe sprain of cartilage, joint or ligament of ankle, foot and toe traumatic hemarthrosis of joint or ligament of ankle, foot and toe	avulsion of joint or ligament of ankle, foot and toe laceration of cartilage, joint or ligament of ankle, foot and toe sprain of cartilage, joint or ligament of ankle, foot and toe traumatic hemarthrosis of joint or ligament of ankle, foot and toe

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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources