S53.20XA vs S53.20XD

S53.20XA (Traumatic rupture of unspecified radial collateral ligament, initial encounter) compared with S53.20XD (Traumatic rupture of unspecified radial collateral ligament, subsequent encounter), from the official CMS tabular data. S53.20XA and S53.20XD code the same injury at a different phase of treatment. MedCoder-derived

Relationship

Review

Encounter relationship

S53.20XA

Initial encounter

Traumatic rupture of unspecified radial collateral ligament, initial encounter

↔

S53.20XD

Subsequent encounter

Traumatic rupture of unspecified radial collateral ligament, 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. S53.20XA and S53.20XD 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

	S53.20XATraumatic rupture of unspecified radial collateral ligament, initial encounter	S53.20XDTraumatic rupture of unspecified radial collateral ligament, subsequent encounter
Billing status	Billable	Billable
Classification	S00-T88 — Injury, poisoning and certain other consequences of external causes	S00-T88 — Injury, poisoning and certain other consequences of external causes
Definition	Traumatic rupture of unspecified radial collateral ligament, initial encounter is a billable ICD-10-CM diagnosis code (S53.20A).	Traumatic rupture of unspecified radial collateral ligament, subsequent encounter is a billable ICD-10-CM diagnosis code (S53.20D).
7th character	The appropriate 7th character is to be added to each code from category S53	The appropriate 7th character is to be added to each code from category S53
Includes	avulsion of joint or ligament of elbow laceration of cartilage, joint or ligament of elbow sprain of cartilage, joint or ligament of elbow traumatic hemarthrosis of joint or ligament of elbow	avulsion of joint or ligament of elbow laceration of cartilage, joint or ligament of elbow sprain of cartilage, joint or ligament of elbow traumatic hemarthrosis of joint or ligament of elbow

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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