October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

S51 Open wound of elbow and forearm

All 108 codes in the S51 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

108

Can lead a claim

72

Cannot lead a claim

36

What CMS assigns to S51

72 of the 108 codes group to Wound; 36 are assigned no clinical group. None of the 108 is assigned a comorbidity subgroup. 72 of the 108 can lead a claim.

Every code in S51

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
S51.0 Open wound of elbow
S51.00 Unspecified open wound of elbow
S51.001 Unspecified open wound of right elbow
S51.001AUnspecified open wound of right elbow, initial encounterCan lead a claimCNone
S51.001DUnspecified open wound of right elbow, subsequent encounterCan lead a claimCNone
S51.001SUnspecified open wound of right elbow, sequelaCan lead a claimCNone
S51.002 Unspecified open wound of left elbow
S51.002AUnspecified open wound of left elbow, initial encounterCan lead a claimCNone
S51.002DUnspecified open wound of left elbow, subsequent encounterCan lead a claimCNone
S51.002SUnspecified open wound of left elbow, sequelaCan lead a claimCNone
S51.009 Unspecified open wound of unspecified elbow
S51.009AUnspecified open wound of unspecified elbow, initial encounterCMS: Unspecified open wound of unspecified elbow, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.009DUnspecified open wound of unspecified elbow, subsequent encounterCMS: Unspecified open wound of unspecified elbow, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.009SUnspecified open wound of unspecified elbow, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.01 Laceration without foreign body of elbow
S51.011 Laceration without foreign body of right elbow
S51.011ALaceration without foreign body of right elbow, initial encounterCMS: Laceration without foreign body of right elbow, init encntrCan lead a claimCNone
S51.011DLaceration without foreign body of right elbow, subsequent encounterCMS: Laceration without foreign body of right elbow, subs encntrCan lead a claimCNone
S51.011SLaceration without foreign body of right elbow, sequelaCan lead a claimCNone
S51.012 Laceration without foreign body of left elbow
S51.012ALaceration without foreign body of left elbow, initial encounterCMS: Laceration without foreign body of left elbow, init encntrCan lead a claimCNone
S51.012DLaceration without foreign body of left elbow, subsequent encounterCMS: Laceration without foreign body of left elbow, subs encntrCan lead a claimCNone
S51.012SLaceration without foreign body of left elbow, sequelaCan lead a claimCNone
S51.019 Laceration without foreign body of unspecified elbow
S51.019ALaceration without foreign body of unspecified elbow, initial encounterCMS: Laceration without foreign body of unsp elbow, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.019DLaceration without foreign body of unspecified elbow, subsequent encounterCMS: Laceration without foreign body of unsp elbow, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.019SLaceration without foreign body of unspecified elbow, sequelaCMS: Laceration without foreign body of unsp elbow, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.02 Laceration with foreign body of elbow
S51.021 Laceration with foreign body of right elbow
S51.021ALaceration with foreign body of right elbow, initial encounterCMS: Laceration with foreign body of right elbow, init encntrCan lead a claimCNone
S51.021DLaceration with foreign body of right elbow, subsequent encounterCMS: Laceration with foreign body of right elbow, subs encntrCan lead a claimCNone
S51.021SLaceration with foreign body of right elbow, sequelaCan lead a claimCNone
S51.022 Laceration with foreign body of left elbow
S51.022ALaceration with foreign body of left elbow, initial encounterCMS: Laceration with foreign body of left elbow, init encntrCan lead a claimCNone
S51.022DLaceration with foreign body of left elbow, subsequent encounterCMS: Laceration with foreign body of left elbow, subs encntrCan lead a claimCNone
S51.022SLaceration with foreign body of left elbow, sequelaCan lead a claimCNone
S51.029 Laceration with foreign body of unspecified elbow
S51.029ALaceration with foreign body of unspecified elbow, initial encounterCMS: Laceration with foreign body of unsp elbow, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.029DLaceration with foreign body of unspecified elbow, subsequent encounterCMS: Laceration with foreign body of unsp elbow, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.029SLaceration with foreign body of unspecified elbow, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.03 Puncture wound without foreign body of elbow
S51.031 Puncture wound without foreign body of right elbow
S51.031APuncture wound without foreign body of right elbow, initial encounterCMS: Puncture wound w/o foreign body of right elbow, init encntrCan lead a claimCNone
S51.031DPuncture wound without foreign body of right elbow, subsequent encounterCMS: Puncture wound w/o foreign body of right elbow, subs encntrCan lead a claimCNone
S51.031SPuncture wound without foreign body of right elbow, sequelaCan lead a claimCNone
S51.032 Puncture wound without foreign body of left elbow
S51.032APuncture wound without foreign body of left elbow, initial encounterCMS: Puncture wound w/o foreign body of left elbow, init encntrCan lead a claimCNone
S51.032DPuncture wound without foreign body of left elbow, subsequent encounterCMS: Puncture wound w/o foreign body of left elbow, subs encntrCan lead a claimCNone
S51.032SPuncture wound without foreign body of left elbow, sequelaCan lead a claimCNone
S51.039 Puncture wound without foreign body of unspecified elbow
S51.039APuncture wound without foreign body of unspecified elbow, initial encounterCMS: Puncture wound w/o foreign body of unsp elbow, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.039DPuncture wound without foreign body of unspecified elbow, subsequent encounterCMS: Puncture wound w/o foreign body of unsp elbow, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.039SPuncture wound without foreign body of unspecified elbow, sequelaCMS: Puncture wound without foreign body of unsp elbow, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.04 Puncture wound with foreign body of elbow
S51.041 Puncture wound with foreign body of right elbow
S51.041APuncture wound with foreign body of right elbow, initial encounterCMS: Puncture wound with foreign body of right elbow, init encntrCan lead a claimCNone
S51.041DPuncture wound with foreign body of right elbow, subsequent encounterCMS: Puncture wound with foreign body of right elbow, subs encntrCan lead a claimCNone
S51.041SPuncture wound with foreign body of right elbow, sequelaCan lead a claimCNone
S51.042 Puncture wound with foreign body of left elbow
S51.042APuncture wound with foreign body of left elbow, initial encounterCMS: Puncture wound with foreign body of left elbow, init encntrCan lead a claimCNone
S51.042DPuncture wound with foreign body of left elbow, subsequent encounterCMS: Puncture wound with foreign body of left elbow, subs encntrCan lead a claimCNone
S51.042SPuncture wound with foreign body of left elbow, sequelaCan lead a claimCNone
S51.049 Puncture wound with foreign body of unspecified elbow
S51.049APuncture wound with foreign body of unspecified elbow, initial encounterCMS: Puncture wound with foreign body of unsp elbow, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.049DPuncture wound with foreign body of unspecified elbow, subsequent encounterCMS: Puncture wound with foreign body of unsp elbow, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.049SPuncture wound with foreign body of unspecified elbow, sequelaCMS: Puncture wound with foreign body of unsp elbow, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.05 Open bite of elbow
S51.051 Open bite, right elbow
S51.051AOpen bite, right elbow, initial encounterCan lead a claimCNone
S51.051DOpen bite, right elbow, subsequent encounterCan lead a claimCNone
S51.051SOpen bite, right elbow, sequelaCan lead a claimCNone
S51.052 Open bite, left elbow
S51.052AOpen bite, left elbow, initial encounterCan lead a claimCNone
S51.052DOpen bite, left elbow, subsequent encounterCan lead a claimCNone
S51.052SOpen bite, left elbow, sequelaCan lead a claimCNone
S51.059 Open bite, unspecified elbow
S51.059AOpen bite, unspecified elbow, initial encounterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.059DOpen bite, unspecified elbow, subsequent encounterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.059SOpen bite, unspecified elbow, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.8 Open wound of forearm
S51.80 Unspecified open wound of forearm
S51.801 Unspecified open wound of right forearm
S51.801AUnspecified open wound of right forearm, initial encounterCan lead a claimCNone
S51.801DUnspecified open wound of right forearm, subsequent encounterCMS: Unspecified open wound of right forearm, subs encntrCan lead a claimCNone
S51.801SUnspecified open wound of right forearm, sequelaCan lead a claimCNone
S51.802 Unspecified open wound of left forearm
S51.802AUnspecified open wound of left forearm, initial encounterCan lead a claimCNone
S51.802DUnspecified open wound of left forearm, subsequent encounterCan lead a claimCNone
S51.802SUnspecified open wound of left forearm, sequelaCan lead a claimCNone
S51.809 Unspecified open wound of unspecified forearm
S51.809AUnspecified open wound of unspecified forearm, initial encounterCMS: Unspecified open wound of unspecified forearm, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.809DUnspecified open wound of unspecified forearm, subsequent encounterCMS: Unspecified open wound of unspecified forearm, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.809SUnspecified open wound of unspecified forearm, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.81 Laceration without foreign body of forearm
S51.811 Laceration without foreign body of right forearm
S51.811ALaceration without foreign body of right forearm, initial encounterCMS: Laceration w/o foreign body of right forearm, init encntrCan lead a claimCNone
S51.811DLaceration without foreign body of right forearm, subsequent encounterCMS: Laceration w/o foreign body of right forearm, subs encntrCan lead a claimCNone
S51.811SLaceration without foreign body of right forearm, sequelaCan lead a claimCNone
S51.812 Laceration without foreign body of left forearm
S51.812ALaceration without foreign body of left forearm, initial encounterCMS: Laceration without foreign body of left forearm, init encntrCan lead a claimCNone
S51.812DLaceration without foreign body of left forearm, subsequent encounterCMS: Laceration without foreign body of left forearm, subs encntrCan lead a claimCNone
S51.812SLaceration without foreign body of left forearm, sequelaCan lead a claimCNone
S51.819 Laceration without foreign body of unspecified forearm
S51.819ALaceration without foreign body of unspecified forearm, initial encounterCMS: Laceration without foreign body of unsp forearm, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.819DLaceration without foreign body of unspecified forearm, subsequent encounterCMS: Laceration without foreign body of unsp forearm, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.819SLaceration without foreign body of unspecified forearm, sequelaCMS: Laceration without foreign body of unsp forearm, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.82 Laceration with foreign body of forearm
S51.821 Laceration with foreign body of right forearm
S51.821ALaceration with foreign body of right forearm, initial encounterCMS: Laceration with foreign body of right forearm, init encntrCan lead a claimCNone
S51.821DLaceration with foreign body of right forearm, subsequent encounterCMS: Laceration with foreign body of right forearm, subs encntrCan lead a claimCNone
S51.821SLaceration with foreign body of right forearm, sequelaCan lead a claimCNone
S51.822 Laceration with foreign body of left forearm
S51.822ALaceration with foreign body of left forearm, initial encounterCMS: Laceration with foreign body of left forearm, init encntrCan lead a claimCNone
S51.822DLaceration with foreign body of left forearm, subsequent encounterCMS: Laceration with foreign body of left forearm, subs encntrCan lead a claimCNone
S51.822SLaceration with foreign body of left forearm, sequelaCan lead a claimCNone
S51.829 Laceration with foreign body of unspecified forearm
S51.829ALaceration with foreign body of unspecified forearm, initial encounterCMS: Laceration with foreign body of unsp forearm, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.829DLaceration with foreign body of unspecified forearm, subsequent encounterCMS: Laceration with foreign body of unsp forearm, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.829SLaceration with foreign body of unspecified forearm, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.83 Puncture wound without foreign body of forearm
S51.831 Puncture wound without foreign body of right forearm
S51.831APuncture wound without foreign body of right forearm, initial encounterCMS: Puncture wound w/o foreign body of right forearm, initCan lead a claimCNone
S51.831DPuncture wound without foreign body of right forearm, subsequent encounterCMS: Puncture wound w/o foreign body of right forearm, subsCan lead a claimCNone
S51.831SPuncture wound without foreign body of right forearm, sequelaCMS: Puncture wound w/o foreign body of right forearm, sequelaCan lead a claimCNone
S51.832 Puncture wound without foreign body of left forearm
S51.832APuncture wound without foreign body of left forearm, initial encounterCMS: Puncture wound w/o foreign body of left forearm, init encntrCan lead a claimCNone
S51.832DPuncture wound without foreign body of left forearm, subsequent encounterCMS: Puncture wound w/o foreign body of left forearm, subs encntrCan lead a claimCNone
S51.832SPuncture wound without foreign body of left forearm, sequelaCan lead a claimCNone
S51.839 Puncture wound without foreign body of unspecified forearm
S51.839APuncture wound without foreign body of unspecified forearm, initial encounterCMS: Puncture wound w/o foreign body of unsp forearm, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.839DPuncture wound without foreign body of unspecified forearm, subsequent encounterCMS: Puncture wound w/o foreign body of unsp forearm, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.839SPuncture wound without foreign body of unspecified forearm, sequelaCMS: Puncture wound without foreign body of unsp forearm, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.84 Puncture wound with foreign body of forearm
S51.841 Puncture wound with foreign body of right forearm
S51.841APuncture wound with foreign body of right forearm, initial encounterCMS: Puncture wound w foreign body of right forearm, init encntrCan lead a claimCNone
S51.841DPuncture wound with foreign body of right forearm, subsequent encounterCMS: Puncture wound w foreign body of right forearm, subs encntrCan lead a claimCNone
S51.841SPuncture wound with foreign body of right forearm, sequelaCan lead a claimCNone
S51.842 Puncture wound with foreign body of left forearm
S51.842APuncture wound with foreign body of left forearm, initial encounterCMS: Puncture wound w foreign body of left forearm, init encntrCan lead a claimCNone
S51.842DPuncture wound with foreign body of left forearm, subsequent encounterCMS: Puncture wound w foreign body of left forearm, subs encntrCan lead a claimCNone
S51.842SPuncture wound with foreign body of left forearm, sequelaCan lead a claimCNone
S51.849 Puncture wound with foreign body of unspecified forearm
S51.849APuncture wound with foreign body of unspecified forearm, initial encounterCMS: Puncture wound w foreign body of unsp forearm, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.849DPuncture wound with foreign body of unspecified forearm, subsequent encounterCMS: Puncture wound w foreign body of unsp forearm, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.849SPuncture wound with foreign body of unspecified forearm, sequelaCMS: Puncture wound with foreign body of unsp forearm, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.85 Open bite of forearm
S51.851 Open bite of right forearm
S51.851AOpen bite of right forearm, initial encounterCan lead a claimCNone
S51.851DOpen bite of right forearm, subsequent encounterCan lead a claimCNone
S51.851SOpen bite of right forearm, sequelaCan lead a claimCNone
S51.852 Open bite of left forearm
S51.852AOpen bite of left forearm, initial encounterCan lead a claimCNone
S51.852DOpen bite of left forearm, subsequent encounterCan lead a claimCNone
S51.852SOpen bite of left forearm, sequelaCan lead a claimCNone
S51.859 Open bite of unspecified forearm
S51.859AOpen bite of unspecified forearm, initial encounterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.859DOpen bite of unspecified forearm, subsequent encounterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S51.859SOpen bite of unspecified forearm, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone

Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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