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

S34 Injury of lumbar and sacral spinal cord and nerves at abdomen, lower back and pelvis level

All 93 codes in the S34 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

93

Can lead a claim

63

Cannot lead a claim

30

What CMS assigns to S34

63 of the 93 codes group to Neuro Rehabilitation (62) and Wound (1); 30 are assigned no clinical group. None of the 93 is assigned a comorbidity subgroup. 63 of the 93 can lead a claim.

Every code in S34

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
S34.0 Concussion and edema of lumbar and sacral spinal cord
S34.01 Concussion and edema of lumbar spinal cord
S34.01XAConcussion and edema of lumbar spinal cord, initial encounterCMS: Concussion and edema of lumbar spinal cord, init encntrCan lead a claimBNone
S34.01XDConcussion and edema of lumbar spinal cord, subsequent encounterCMS: Concussion and edema of lumbar spinal cord, subs encntrCan lead a claimBNone
S34.01XSConcussion and edema of lumbar spinal cord, sequelaCan lead a claimBNone
S34.02 Concussion and edema of sacral spinal cord
S34.02XAConcussion and edema of sacral spinal cord, initial encounterCMS: Concussion and edema of sacral spinal cord, init encntrCan lead a claimBNone
S34.02XDConcussion and edema of sacral spinal cord, subsequent encounterCMS: Concussion and edema of sacral spinal cord, subs encntrCan lead a claimBNone
S34.02XSConcussion and edema of sacral spinal cord, sequelaCan lead a claimBNone
S34.1 Other and unspecified injury of lumbar and sacral spinal cord
S34.10 Unspecified injury to lumbar spinal cord
S34.101 Unspecified injury to L1 level of lumbar spinal cord
S34.101AUnspecified injury to L1 level of lumbar spinal cord, initial encounterCMS: Unsp injury to L1 level of lumbar spinal cord, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.101DUnspecified injury to L1 level of lumbar spinal cord, subsequent encounterCMS: Unsp injury to L1 level of lumbar spinal cord, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.101SUnspecified injury to L1 level of lumbar spinal cord, sequelaCMS: Unsp injury to L1 level of lumbar spinal cord, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.102 Unspecified injury to L2 level of lumbar spinal cord
S34.102AUnspecified injury to L2 level of lumbar spinal cord, initial encounterCMS: Unsp injury to L2 level of lumbar spinal cord, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.102DUnspecified injury to L2 level of lumbar spinal cord, subsequent encounterCMS: Unsp injury to L2 level of lumbar spinal cord, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.102SUnspecified injury to L2 level of lumbar spinal cord, sequelaCMS: Unsp injury to L2 level of lumbar spinal cord, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.103 Unspecified injury to L3 level of lumbar spinal cord
S34.103AUnspecified injury to L3 level of lumbar spinal cord, initial encounterCMS: Unsp injury to L3 level of lumbar spinal cord, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.103DUnspecified injury to L3 level of lumbar spinal cord, subsequent encounterCMS: Unsp injury to L3 level of lumbar spinal cord, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.103SUnspecified injury to L3 level of lumbar spinal cord, sequelaCMS: Unsp injury to L3 level of lumbar spinal cord, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.104 Unspecified injury to L4 level of lumbar spinal cord
S34.104AUnspecified injury to L4 level of lumbar spinal cord, initial encounterCMS: Unsp injury to L4 level of lumbar spinal cord, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.104DUnspecified injury to L4 level of lumbar spinal cord, subsequent encounterCMS: Unsp injury to L4 level of lumbar spinal cord, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.104SUnspecified injury to L4 level of lumbar spinal cord, sequelaCMS: Unsp injury to L4 level of lumbar spinal cord, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.105 Unspecified injury to L5 level of lumbar spinal cord
S34.105AUnspecified injury to L5 level of lumbar spinal cord, initial encounterCMS: Unsp injury to L5 level of lumbar spinal cord, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.105DUnspecified injury to L5 level of lumbar spinal cord, subsequent encounterCMS: Unsp injury to L5 level of lumbar spinal cord, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.105SUnspecified injury to L5 level of lumbar spinal cord, sequelaCMS: Unsp injury to L5 level of lumbar spinal cord, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.109 Unspecified injury to unspecified level of lumbar spinal cord
S34.109AUnspecified injury to unspecified level of lumbar spinal cord, initial encounterCMS: Unsp injury to unsp level of lumbar spinal cord, init encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.109DUnspecified injury to unspecified level of lumbar spinal cord, subsequent encounterCMS: Unsp injury to unsp level of lumbar spinal cord, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.109SUnspecified injury to unspecified level of lumbar spinal cord, sequelaCMS: Unsp injury to unsp level of lumbar spinal cord, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.11 Complete lesion of lumbar spinal cord
S34.111 Complete lesion of L1 level of lumbar spinal cord
S34.111AComplete lesion of L1 level of lumbar spinal cord, initial encounterCMS: Complete lesion of L1 level of lumbar spinal cord, initCan lead a claimBNone
S34.111DComplete lesion of L1 level of lumbar spinal cord, subsequent encounterCMS: Complete lesion of L1 level of lumbar spinal cord, subsCan lead a claimBNone
S34.111SComplete lesion of L1 level of lumbar spinal cord, sequelaCan lead a claimBNone
S34.112 Complete lesion of L2 level of lumbar spinal cord
S34.112AComplete lesion of L2 level of lumbar spinal cord, initial encounterCMS: Complete lesion of L2 level of lumbar spinal cord, initCan lead a claimCNone
S34.112DComplete lesion of L2 level of lumbar spinal cord, subsequent encounterCMS: Complete lesion of L2 level of lumbar spinal cord, subsCan lead a claimBNone
S34.112SComplete lesion of L2 level of lumbar spinal cord, sequelaCan lead a claimBNone
S34.113 Complete lesion of L3 level of lumbar spinal cord
S34.113AComplete lesion of L3 level of lumbar spinal cord, initial encounterCMS: Complete lesion of L3 level of lumbar spinal cord, initCan lead a claimBNone
S34.113DComplete lesion of L3 level of lumbar spinal cord, subsequent encounterCMS: Complete lesion of L3 level of lumbar spinal cord, subsCan lead a claimBNone
S34.113SComplete lesion of L3 level of lumbar spinal cord, sequelaCan lead a claimBNone
S34.114 Complete lesion of L4 level of lumbar spinal cord
S34.114AComplete lesion of L4 level of lumbar spinal cord, initial encounterCMS: Complete lesion of L4 level of lumbar spinal cord, initCan lead a claimBNone
S34.114DComplete lesion of L4 level of lumbar spinal cord, subsequent encounterCMS: Complete lesion of L4 level of lumbar spinal cord, subsCan lead a claimBNone
S34.114SComplete lesion of L4 level of lumbar spinal cord, sequelaCan lead a claimBNone
S34.115 Complete lesion of L5 level of lumbar spinal cord
S34.115AComplete lesion of L5 level of lumbar spinal cord, initial encounterCMS: Complete lesion of L5 level of lumbar spinal cord, initCan lead a claimBNone
S34.115DComplete lesion of L5 level of lumbar spinal cord, subsequent encounterCMS: Complete lesion of L5 level of lumbar spinal cord, subsCan lead a claimBNone
S34.115SComplete lesion of L5 level of lumbar spinal cord, sequelaCan lead a claimBNone
S34.119 Complete lesion of unspecified level of lumbar spinal cord
S34.119AComplete lesion of unspecified level of lumbar spinal cord, initial encounterCMS: Complete lesion of unsp level of lumbar spinal cord, initCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.119DComplete lesion of unspecified level of lumbar spinal cord, subsequent encounterCMS: Complete lesion of unsp level of lumbar spinal cord, subsCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.119SComplete lesion of unspecified level of lumbar spinal cord, sequelaCMS: Complete lesion of unsp level of lumbar spinal cord, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.12 Incomplete lesion of lumbar spinal cord
S34.121 Incomplete lesion of L1 level of lumbar spinal cord
S34.121AIncomplete lesion of L1 level of lumbar spinal cord, initial encounterCMS: Incomplete lesion of L1 level of lumbar spinal cord, initCan lead a claimBNone
S34.121DIncomplete lesion of L1 level of lumbar spinal cord, subsequent encounterCMS: Incomplete lesion of L1 level of lumbar spinal cord, subsCan lead a claimBNone
S34.121SIncomplete lesion of L1 level of lumbar spinal cord, sequelaCan lead a claimBNone
S34.122 Incomplete lesion of L2 level of lumbar spinal cord
S34.122AIncomplete lesion of L2 level of lumbar spinal cord, initial encounterCMS: Incomplete lesion of L2 level of lumbar spinal cord, initCan lead a claimBNone
S34.122DIncomplete lesion of L2 level of lumbar spinal cord, subsequent encounterCMS: Incomplete lesion of L2 level of lumbar spinal cord, subsCan lead a claimBNone
S34.122SIncomplete lesion of L2 level of lumbar spinal cord, sequelaCan lead a claimBNone
S34.123 Incomplete lesion of L3 level of lumbar spinal cord
S34.123AIncomplete lesion of L3 level of lumbar spinal cord, initial encounterCMS: Incomplete lesion of L3 level of lumbar spinal cord, initCan lead a claimBNone
S34.123DIncomplete lesion of L3 level of lumbar spinal cord, subsequent encounterCMS: Incomplete lesion of L3 level of lumbar spinal cord, subsCan lead a claimBNone
S34.123SIncomplete lesion of L3 level of lumbar spinal cord, sequelaCan lead a claimBNone
S34.124 Incomplete lesion of L4 level of lumbar spinal cord
S34.124AIncomplete lesion of L4 level of lumbar spinal cord, initial encounterCMS: Incomplete lesion of L4 level of lumbar spinal cord, initCan lead a claimBNone
S34.124DIncomplete lesion of L4 level of lumbar spinal cord, subsequent encounterCMS: Incomplete lesion of L4 level of lumbar spinal cord, subsCan lead a claimBNone
S34.124SIncomplete lesion of L4 level of lumbar spinal cord, sequelaCan lead a claimBNone
S34.125 Incomplete lesion of L5 level of lumbar spinal cord
S34.125AIncomplete lesion of L5 level of lumbar spinal cord, initial encounterCMS: Incomplete lesion of L5 level of lumbar spinal cord, initCan lead a claimBNone
S34.125DIncomplete lesion of L5 level of lumbar spinal cord, subsequent encounterCMS: Incomplete lesion of L5 level of lumbar spinal cord, subsCan lead a claimBNone
S34.125SIncomplete lesion of L5 level of lumbar spinal cord, sequelaCan lead a claimBNone
S34.129 Incomplete lesion of unspecified level of lumbar spinal cord
S34.129AIncomplete lesion of unspecified level of lumbar spinal cord, initial encounterCMS: Incomplete lesion of unsp level of lumbar spinal cord, initCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.129DIncomplete lesion of unspecified level of lumbar spinal cord, subsequent encounterCMS: Incomplete lesion of unsp level of lumbar spinal cord, subsCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.129SIncomplete lesion of unspecified level of lumbar spinal cord, sequelaCMS: Incomplete lesion of unsp level of lum spinal cord, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.13 Other and unspecified injury to sacral spinal cord
S34.131 Complete lesion of sacral spinal cord
S34.131AComplete lesion of sacral spinal cord, initial encounterCan lead a claimBNone
S34.131DComplete lesion of sacral spinal cord, subsequent encounterCan lead a claimBNone
S34.131SComplete lesion of sacral spinal cord, sequelaCan lead a claimBNone
S34.132 Incomplete lesion of sacral spinal cord
S34.132AIncomplete lesion of sacral spinal cord, initial encounterCan lead a claimBNone
S34.132DIncomplete lesion of sacral spinal cord, subsequent encounterCMS: Incomplete lesion of sacral spinal cord, subs encntrCan lead a claimBNone
S34.132SIncomplete lesion of sacral spinal cord, sequelaCan lead a claimBNone
S34.139 Unspecified injury to sacral spinal cord
S34.139AUnspecified injury to sacral spinal cord, initial encounterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.139DUnspecified injury to sacral spinal cord, subsequent encounterCMS: Unspecified injury to sacral spinal cord, subs encntrCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.139SUnspecified injury to sacral spinal cord, sequelaCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.2 Injury of nerve root of lumbar and sacral spine
S34.21 Injury of nerve root of lumbar spine
S34.21XAInjury of nerve root of lumbar spine, initial encounterCan lead a claimBNone
S34.21XDInjury of nerve root of lumbar spine, subsequent encounterCan lead a claimBNone
S34.21XSInjury of nerve root of lumbar spine, sequelaCan lead a claimBNone
S34.22 Injury of nerve root of sacral spine
S34.22XAInjury of nerve root of sacral spine, initial encounterCan lead a claimBNone
S34.22XDInjury of nerve root of sacral spine, subsequent encounterCan lead a claimBNone
S34.22XSInjury of nerve root of sacral spine, sequelaCan lead a claimBNone
S34.3 Injury of cauda equina
S34.3XXAInjury of cauda equina, initial encounterCan lead a claimBNone
S34.3XXDInjury of cauda equina, subsequent encounterCan lead a claimBNone
S34.3XXSInjury of cauda equina, sequelaCan lead a claimBNone
S34.4 Injury of lumbosacral plexus
S34.4XXAInjury of lumbosacral plexus, initial encounterCan lead a claimBNone
S34.4XXDInjury of lumbosacral plexus, subsequent encounterCan lead a claimBNone
S34.4XXSInjury of lumbosacral plexus, sequelaCan lead a claimBNone
S34.5 Injury of lumbar, sacral and pelvic sympathetic nerves
S34.5XXAInjury of lumbar, sacral and pelvic sympathetic nerves, initial encounterCMS: Injury of lumbar, sacral and pelvic sympathetic nerves, initCan lead a claimBNone
S34.5XXDInjury of lumbar, sacral and pelvic sympathetic nerves, subsequent encounterCMS: Injury of lumbar, sacral and pelvic sympathetic nerves, subsCan lead a claimBNone
S34.5XXSInjury of lumbar, sacral and pelvic sympathetic nerves, sequelaCMS: Inj lumbar, sacral and pelvic sympathetic nerves, sequelaCan lead a claimBNone
S34.6 Injury of peripheral nerve(s) at abdomen, lower back and pelvis level
S34.6XXAInjury of peripheral nerve(s) at abdomen, lower back and pelvis level, initial encounterCMS: Inj prph nerve(s) at abd, low back and pelvis level, initCan lead a claimBNone
S34.6XXDInjury of peripheral nerve(s) at abdomen, lower back and pelvis level, subsequent encounterCMS: Inj prph nerve(s) at abd, low back and pelvis level, subsCan lead a claimBNone
S34.6XXSInjury of peripheral nerve(s) at abdomen, lower back and pelvis level, sequelaCMS: Inj prph nerve(s) at abd, low back and pelvis level, sequelaCan lead a claimBNone
S34.8 Injury of other nerves at abdomen, lower back and pelvis level
S34.8XXAInjury of other nerves at abdomen, lower back and pelvis level, initial encounterCMS: Injury of nerves at abdomen, low back and pelvis level, initCan lead a claimBNone
S34.8XXDInjury of other nerves at abdomen, lower back and pelvis level, subsequent encounterCMS: Injury of nerves at abdomen, low back and pelvis level, subsCan lead a claimBNone
S34.8XXSInjury of other nerves at abdomen, lower back and pelvis level, sequelaCMS: Inj nerves at abdomen, low back and pelvis level, sequelaCan lead a claimBNone
S34.9 Injury of unspecified nerves at abdomen, lower back and pelvis level
S34.9XXAInjury of unspecified nerves at abdomen, lower back and pelvis level, initial encounterCMS: Inj unsp nerves at abdomen, low back and pelvis level, initCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.9XXDInjury of unspecified nerves at abdomen, lower back and pelvis level, subsequent encounterCMS: Inj unsp nerves at abdomen, low back and pelvis level, subsCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
S34.9XXSInjury of unspecified nerves at abdomen, lower back and pelvis level, sequelaCMS: Inj unsp nerves at abd, low back and pelvis level, 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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